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Full vulnerability report · 2026
CVE-2026-82717High confidence

CNAME synthesis could lead to heap corruption

NLnet Labs · Unbound

8.4HighCVSS 4.0
Recommended action
Patch only the product branches with a verified fix

High technical severity; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 1 structured product or package state remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:High, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
  • EPSS is 0.78% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs NLnet Labs Unbound and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 30 daysRemediation target: Within 180 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Cross-source reconciliation

Remediation availability differs by product scope

Verified remediation exists for at least one product or source, but 1 structured product or package state remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Distribution package intelligence

Release-specific package status

Alpine, Debian, ubuntu findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

7 package states
Package result overrides the generic status

BlackTree has verified remediation for at least one product or source, but the relevant distribution still reports no fixed package for 1 affected package state shown here. Treat those rows as affected with no fix until that distribution publishes a fixed version.

Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Distribution releaseSource packageVendor stateFixed versionEvidence
Alpine v3.23v3.23 · mainunboundVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.1.25.2-r0Alpine Security Database ↗Source updated 6 Oct 2026
Alpine v3.22v3.22 · mainunboundVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.1.25.2-r0Alpine Security Database ↗Source updated 6 Oct 2026
Debian trixietrixie · sourceunboundVendor fix publishedDebian records a fixed source-package version for this release.1.26.1-0+deb13u1Debian Security Tracker ↗Source updated 7 Oct 2026
Debian bookwormbookworm · sourceunboundAffected, no fix publishedDebian currently tracks this release as open.Not published in this feedDebian Security Tracker ↗Source updated 7 Oct 2026
Debian forkyforky · sourceunboundVendor fix publishedDebian records a fixed source-package version for this release.1.26.1-1Debian Security Tracker ↗Source updated 7 Oct 2026
Debian sidsid · sourceunboundVendor fix publishedDebian records a fixed source-package version for this release.1.26.1-1Debian Security Tracker ↗Source updated 7 Oct 2026
Ubuntu 24.04 LTSnoble · standard archiveunboundVendor fix publishedCanonical reports that a fixed source package version has been published. Repository candidate availability is not checked by BlackTree.1.19.2-1ubuntu3.10Canonical Ubuntu Security ↗Source updated 7 Oct 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

2 current
CVE-2026-82717 · CSAF 2.0 · revision 3 · finalRed Hat Product Securityunbound: Unbound: Remote Code Execution Vulnerability in CNAME Synthesis
11 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • unbound as a component of Red Hat Enterprise Linux 6
  • unbound-devel as a component of Red Hat Enterprise Linux 6
  • unbound-libs as a component of Red Hat Enterprise Linux 6
  • unbound-python as a component of Red Hat Enterprise Linux 6
  • unbound.src as a component of Red Hat Enterprise Linux 6
  • unbound as a component of Red Hat Enterprise Linux 7
  • unbound-devel as a component of Red Hat Enterprise Linux 7
  • unbound-libs as a component of Red Hat Enterprise Linux 7
  • unbound-python as a component of Red Hat Enterprise Linux 7
  • unbound.src as a component of Red Hat Enterprise Linux 7
  • openshift/ose-rhel-coreos-8 as a component of Red Hat OpenShift Container Platform 4
Summary
A flaw was found in Unbound. Improper handling of buffer positions and compression pointers in Unbound's CNAME synthesis allows a remote attacker to corrupt heap memory via upstream DNS responses. This vulnerability can result in a denial of service (DoS) or, under specific conditions, remote code execution (RCE).
Remediation
For OpenShift Container Platform 4.22 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.redhat.com/en/documentation/openshift_container_platform/4.22/html/release_notes/ You may download the oc tool and use it to inspect release image metadata for x86_64, s390x, ppc64le, and aarch64 architectures. The image digests may be found at https://quay.io/repository/openshift-release-dev/ocp-release?tab=tags. The sha values for the release are as follows: (For x86_64 architecture) The image digest is sha256:9bde31879df303de7db7c100878393a520215f33815d0d9b188e3b4436c876a7 (For s390x architecture) The image digest is sha256:41d57f38fe018b5dcfb3698eb4630f406ec7546f67819d55acd134c3a2e5827a (For ppc64le architecture) The image digest is sha256:160d848722ca2e69777f512ff36adbd5485854b9905e0813aceecf83d549f5a2 (For aarch64 architecture) The image digest is sha256:b040b4af870284b4fcec18283bac700a5d3a0162cec2101a235dfa9a5f005b14 All OpenShift Container Platform 4.22 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.redhat.com/en/documentation/openshift_container_platform/4.22/html-single/updating_clusters/index#updating-cluster-cli.
CVE-2026-82717 · CSAF 2.0 · revision 2 · interimSUSE Product Security TeamCVE-2026-82717
174 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • libunbound8 as component of SUSE Linux Enterprise Desktop 15 SP7
  • unbound as component of SUSE Linux Enterprise Desktop 15 SP7
  • unbound-anchor as component of SUSE Linux Enterprise Desktop 15 SP7
  • unbound-devel as component of SUSE Linux Enterprise Desktop 15 SP7
  • libunbound2 as component of SUSE Linux Enterprise High Performance Computing 15 SP1
  • unbound as component of SUSE Linux Enterprise High Performance Computing 15 SP1
  • unbound-anchor as component of SUSE Linux Enterprise High Performance Computing 15 SP1
  • unbound-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1
  • libunbound2 as component of SUSE Linux Enterprise High Performance Computing 15 SP2
  • libunbound8 as component of SUSE Linux Enterprise High Performance Computing 15 SP2
  • unbound as component of SUSE Linux Enterprise High Performance Computing 15 SP2
  • unbound-anchor as component of SUSE Linux Enterprise High Performance Computing 15 SP2
Summary
In NLnet Labs Unbound up to and including 1.26.0, a vulnerability was found in that can progressively corrupt heap memory and under certain systems and compilation options could lead to remote code execution. The vulnerability starts when CNAME synthesis during an upstream response needs to enforce(rewrite) a max TTL value in the packet buffer. Coupled with a compression pointer that points to the overwritten value and invalidates the domain name, it leads to an error path that does not properly move the buffer position and allows for the heap buffer overflow. Since this is heavily reliant on heap memory layout, results are memory corruption that eventually leads to a crash and under specific systems and compilation options remote code execution.
Remediation
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2026-80292

No EUVD known-exploited evidence

In NLnet Labs Unbound up to and including 1.26.0, a vulnerability was found in that can progressively corrupt heap memory and under certain systems and compilation options could lead to remote code execution. The vulnerability starts when CNAME synthesis during an upstream response needs to enforce(rewrite) a max TTL value in the packet buffer. Coupled with a compression pointer that points to the overwritten value and invalidates the domain name, it leads to an error path that does not properly move the buffer position and allows for the heap buffer overflow. Since this is heavily reliant on heap memory layout, results are memory corruption that eventually leads to a crash and under specific systems and compilation options remote code execution.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
8.4 · CVSS 4.0
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch only the product branches with a verified fix

High technical severity; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 1 structured product or package state remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

In NLnet Labs Unbound up to and including 1.26.0, a vulnerability was found in that can progressively corrupt heap memory and under certain systems and compilation options could lead to remote code execution. The vulnerability starts when CNAME synthesis during an upstream response needs to enforce(rewrite) a max TTL value in the packet buffer. Coupled with a compression pointer that points to the overwritten value and invalidates the domain name, it leads to an error path that does not properly move the buffer position and allows for the heap buffer overflow. Since this is heavily reliant on heap memory layout, results are memory corruption that eventually leads to a crash and under specific systems and compilation options remote code execution.

What

In NLnet Labs Unbound up to and including 1.26.0, a vulnerability was found in that can progressively corrupt heap memory and under certain systems and compilation options could lead to remote code execution. The vulnerability starts when CNAME synthesis during an upstream response needs to enforce(rewrite) a max TTL value in the packet buffer. Coupled with a compression pointer that points to the overwritten value and invalidates the domain name, it leads to an error path that does not properly move the buffer position and allows for the heap buffer overflow. Since this is heavily reliant on heap memory layout, results are memory corruption that eventually leads to a crash and under specific systems and compilation options remote code execution.

Why

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may execute code or commands in the affected security context.

What

In NLnet Labs Unbound up to and including 1.26.0, a vulnerability was found in that can progressively corrupt heap memory and under certain systems and compilation options could lead to remote code execution. The vulnerability starts when CNAME synthesis during an upstream response needs to enforce(rewrite) a max TTL value in the packet buffer. Coupled with a compression pointer that points to the overwritten value and invalidates the domain name, it leads to an error path that does not properly move the buffer position and allows for the heap buffer overflow. Since this is heavily reliant on heap memory layout, results are memory corruption that eventually leads to a crash and under specific systems and compilation options remote code execution.

Why

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may execute code or commands in the affected security context.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Heap-based Buffer Overflow → execute code or commands in the affected security context
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
High: exploitation depends on specific conditions
Security boundary
Not a CVSS 4.0 base metric
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-122 ↗

CWE-122: Heap-based Buffer Overflow. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U

Common Vulnerability Scoring System 4.0: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.ATNoneAttack requirements: No additional deployment or execution condition is required.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.VCHighVulnerable-system confidentiality: A successful attack can cause a major loss.VIHighVulnerable-system integrity: A successful attack can cause a major loss.VAHighVulnerable-system availability: A successful attack can cause a major loss.SCHighSubsequent-system confidentiality: A successful attack can cause a major loss.SIHighSubsequent-system integrity: A successful attack can cause a major loss.SAHighSubsequent-system availability: A successful attack can cause a major loss.
Post-exploitation / living off the land
After compromise, an attacker may use built-in shells, scripting engines, scheduled tasks and native network utilities for discovery, persistence or movement. This is a plausible LoTL path, not evidence that it has occurred for every attack.
NetworkUnauthenticatedRemote code executionDenial of serviceCWE-122
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2026-80292Official EUVD mapping

In NLnet Labs Unbound up to and including 1.26.0, a vulnerability was found in that can progressively corrupt heap memory and under certain systems and compilation options could lead to remote code execution. The vulnerability starts when CNAME synthesis during an upstream response needs to enforce(rewrite) a max TTL value in the packet buffer. Coupled with a compression pointer that points to the overwritten value and invalidates the domain name, it leads to an error path that does not properly move the buffer position and allows for the heap buffer overflow. Since this is heavily reliant on heap memory layout, results are memory corruption that eventually leads to a crash and under specific systems and compilation options remote code execution.

Official EUVD record ↗
BSI · German · WID-SEC-2026-3392Unbound: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Unbound ausnutzen, um Sicherheitsmaßnahmen zu umgehen, Speicher zu korrumpieren, einen Denial of Service zu verursachen oder Code auszuführen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260923Security Bulletin 23 Sep 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 23 Sep 2026, published on 23 September 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-035343NLnet Labsのunboundにおけるヒープベースのバッファオーバーフローの脆弱性

NLnet LabsのUnboundバージョン1.26.0まで（含む）において、ヒープメモリを徐々に破損させ、一部のシステムおよびコンパイルオプション下ではリモートコード実行に至る可能性がある脆弱性が発見されました。この脆弱性は、上流の応答でCNAME合成時にパケットバッファ内の最大TTL値を強制（書き換え）する必要がある場合に発生します。上書きされた値を指す圧縮ポインタと組み合わさることでドメイン名が無効化され、バッファ位置が正しく移動しないエラーパスが発生し、ヒープバッファのオーバーフローを引き起こします。これはヒープメモリのレイアウトに大きく依存しているため、結果としてメモリ破損を引き起こし、最終的にはクラッシュを引き起こします。さらに、特定のシステムやコンパイルオプション下ではリモートコード実行につながります。

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix availability varies by product
Affected
Fixed
Action
Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 16 Sept 2026 · Last source change 16 Sept 2026, 14:15 UTC · CWE-122 · Heap-based Buffer Overflow

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-09-16
European sourceENISA EUVD · EUVD-2026-80292
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Vendor guidanceAuthoritative vendor guidance changed from remediation: access.redhat.com/CVE-2026-82717 to remediation: access.redhat.com/CVE-2026-82717.
    Before
    remediation: access.redhat.com/CVE-2026-82717
    After
    remediation: access.redhat.com/CVE-2026-82717
    Red Hat Product Security ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    unbound as a component of Red Hat Enterprise Linux 6; unbound-devel as a component of Red Hat Enterprise Linux 6; unbound-libs as a component of Red Hat Enterprise Linux 6; unbound-python as a component of Red Hat Enterprise Linux 6; unbound.src as a component of Red Hat Enterprise Linux 6; unbound as a component of Red Hat Enterprise Linux 7; unbound-devel as a component of Red Hat Enterprise Linux 7; unbound-libs as a component of Red Hat Enterprise Linux 7; unbound-python as a component of Red Hat Enterprise Linux 7; unbound.src as a component of Red Hat Enterprise Linux 7; openshift/ose-rhel-coreos-8 as a component of Red Hat OpenShift Container Platform 4; openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4 · Fixed: python3-unbound-0:1.24.2-7.el10_2.6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-0:1.24.2-7.el10_2.6.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-0:1.24.2-7.el10_2.6.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-0:1.24.2-7.el10_2.6.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.6.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.6.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.6.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.6.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.6.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.6.src as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.6.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.6.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.6.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.6.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.6.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.6.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.6.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.6.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.6.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.6.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debugsource-0:1.24.2-7.el10_2.6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debugsource-0:1.24.2-7.el10_2.6.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debugsource-0:1.24.2-7.el10_2.6.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debugsource-0:1.24.2-7.el10_2.6.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-dracut-0:1.24.2-7.el10_2.6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 166 more
    After
    unbound as a component of Red Hat Enterprise Linux 6; unbound-devel as a component of Red Hat Enterprise Linux 6; unbound-libs as a component of Red Hat Enterprise Linux 6; unbound-python as a component of Red Hat Enterprise Linux 6; unbound.src as a component of Red Hat Enterprise Linux 6; unbound as a component of Red Hat Enterprise Linux 7; unbound-devel as a component of Red Hat Enterprise Linux 7; unbound-libs as a component of Red Hat Enterprise Linux 7; unbound-python as a component of Red Hat Enterprise Linux 7; unbound.src as a component of Red Hat Enterprise Linux 7; openshift/ose-rhel-coreos-8 as a component of Red Hat OpenShift Container Platform 4 · Fixed: rhcos-aarch64-4.22.9.8.202609291947-0 as a component of Red Hat OpenShift Container Platform 4.22; rhcos-ppc64le-4.22.9.8.202609291947-0 as a component of Red Hat OpenShift Container Platform 4.22; rhcos-s390x-4.22.9.8.202609291947-0 as a component of Red Hat OpenShift Container Platform 4.22; rhcos-x86_64-4.22.9.8.202609291947-0 as a component of Red Hat OpenShift Container Platform 4.22; python3-unbound-0:1.24.2-7.el10_2.6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-0:1.24.2-7.el10_2.6.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-0:1.24.2-7.el10_2.6.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-0:1.24.2-7.el10_2.6.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.6.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.6.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.6.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.6.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.6.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.6.src as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.6.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.6.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.6.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.6.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.6.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.6.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.6.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.6.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.6.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.6.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debugsource-0:1.24.2-7.el10_2.6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 170 more
    Red Hat Product Security ↗
  3. Affected versionsThe structured affected or fixed version information changed.
    Before
    python3-unbound as a component of Red Hat Enterprise Linux 10; unbound as a component of Red Hat Enterprise Linux 10; unbound-anchor as a component of Red Hat Enterprise Linux 10; unbound-devel as a component of Red Hat Enterprise Linux 10; unbound-dracut as a component of Red Hat Enterprise Linux 10; unbound-libs as a component of Red Hat Enterprise Linux 10; unbound-utils as a component of Red Hat Enterprise Linux 10; unbound.src as a component of Red Hat Enterprise Linux 10; unbound as a component of Red Hat Enterprise Linux 6; unbound-devel as a component of Red Hat Enterprise Linux 6; unbound-libs as a component of Red Hat Enterprise Linux 6; unbound-python as a component of Red Hat Enterprise Linux 6; unbound.src as a component of Red Hat Enterprise Linux 6; unbound as a component of Red Hat Enterprise Linux 7; unbound-devel as a component of Red Hat Enterprise Linux 7; unbound-libs as a component of Red Hat Enterprise Linux 7; unbound-python as a component of Red Hat Enterprise Linux 7; unbound.src as a component of Red Hat Enterprise Linux 7; python3-unbound as a component of Red Hat Enterprise Linux 9; unbound as a component of Red Hat Enterprise Linux 9; unbound-devel as a component of Red Hat Enterprise Linux 9; unbound-dracut as a component of Red Hat Enterprise Linux 9; unbound-libs as a component of Red Hat Enterprise Linux 9; unbound.src as a component of Red Hat Enterprise Linux 9; openshift/ose-rhel-coreos-8 as a component of Red Hat OpenShift Container Platform 4; openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4 · Fixed: python3-unbound-0:1.16.2-5.14.el8_10.4.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8); python3-unbound-0:1.16.2-5.14.el8_10.4.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8); python3-unbound-0:1.16.2-5.14.el8_10.4.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8); python3-unbound-0:1.16.2-5.14.el8_10.4.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8); python3-unbound-debuginfo-0:1.16.2-5.14.el8_10.4.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8); python3-unbound-debuginfo-0:1.16.2-5.14.el8_10.4.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8); python3-unbound-debuginfo-0:1.16.2-5.14.el8_10.4.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8); python3-unbound-debuginfo-0:1.16.2-5.14.el8_10.4.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8); python3-unbound-debuginfo-0:1.16.2-5.14.el8_10.4.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-0:1.16.2-5.14.el8_10.4.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-0:1.16.2-5.14.el8_10.4.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-0:1.16.2-5.14.el8_10.4.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-0:1.16.2-5.14.el8_10.4.src as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-0:1.16.2-5.14.el8_10.4.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-debuginfo-0:1.16.2-5.14.el8_10.4.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-debuginfo-0:1.16.2-5.14.el8_10.4.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-debuginfo-0:1.16.2-5.14.el8_10.4.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-debuginfo-0:1.16.2-5.14.el8_10.4.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-debuginfo-0:1.16.2-5.14.el8_10.4.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-debugsource-0:1.16.2-5.14.el8_10.4.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-debugsource-0:1.16.2-5.14.el8_10.4.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-debugsource-0:1.16.2-5.14.el8_10.4.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-debugsource-0:1.16.2-5.14.el8_10.4.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-debugsource-0:1.16.2-5.14.el8_10.4.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-devel-0:1.16.2-5.14.el8_10.4.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-devel-0:1.16.2-5.14.el8_10.4.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-devel-0:1.16.2-5.14.el8_10.4.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-devel-0:1.16.2-5.14.el8_10.4.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-devel-0:1.16.2-5.14.el8_10.4.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-libs-0:1.16.2-5.14.el8_10.4.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8); and 26 more
    After
    unbound as a component of Red Hat Enterprise Linux 6; unbound-devel as a component of Red Hat Enterprise Linux 6; unbound-libs as a component of Red Hat Enterprise Linux 6; unbound-python as a component of Red Hat Enterprise Linux 6; unbound.src as a component of Red Hat Enterprise Linux 6; unbound as a component of Red Hat Enterprise Linux 7; unbound-devel as a component of Red Hat Enterprise Linux 7; unbound-libs as a component of Red Hat Enterprise Linux 7; unbound-python as a component of Red Hat Enterprise Linux 7; unbound.src as a component of Red Hat Enterprise Linux 7; openshift/ose-rhel-coreos-8 as a component of Red Hat OpenShift Container Platform 4; openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4 · Fixed: python3-unbound-0:1.24.2-7.el10_2.6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-0:1.24.2-7.el10_2.6.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-0:1.24.2-7.el10_2.6.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-0:1.24.2-7.el10_2.6.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.6.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.6.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); python3-unbound-debuginfo-0:1.24.2-7.el10_2.6.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.6.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.6.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.6.src as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-0:1.24.2-7.el10_2.6.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.6.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.6.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-0:1.24.2-7.el10_2.6.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.6.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.6.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-anchor-debuginfo-0:1.24.2-7.el10_2.6.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.6.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.6.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debuginfo-0:1.24.2-7.el10_2.6.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debugsource-0:1.24.2-7.el10_2.6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debugsource-0:1.24.2-7.el10_2.6.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debugsource-0:1.24.2-7.el10_2.6.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-debugsource-0:1.24.2-7.el10_2.6.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); unbound-dracut-0:1.24.2-7.el10_2.6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 166 more
    Red Hat Product Security ↗
  4. Vendor guidanceAuthoritative vendor guidance changed from remediation: access.redhat.com/CVE-2026-82717 to remediation: access.redhat.com/CVE-2026-82717.
    Before
    remediation: access.redhat.com/CVE-2026-82717
    After
    remediation: access.redhat.com/CVE-2026-82717
    Red Hat Product Security ↗
  5. Affected versionsThe structured affected or fixed version information changed.
    Before
    python3-unbound as a component of Red Hat Enterprise Linux 10; unbound as a component of Red Hat Enterprise Linux 10; unbound-anchor as a component of Red Hat Enterprise Linux 10; unbound-devel as a component of Red Hat Enterprise Linux 10; unbound-dracut as a component of Red Hat Enterprise Linux 10; unbound-libs as a component of Red Hat Enterprise Linux 10; unbound-utils as a component of Red Hat Enterprise Linux 10; unbound.src as a component of Red Hat Enterprise Linux 10; unbound as a component of Red Hat Enterprise Linux 6; unbound-devel as a component of Red Hat Enterprise Linux 6; unbound-libs as a component of Red Hat Enterprise Linux 6; unbound-python as a component of Red Hat Enterprise Linux 6; unbound.src as a component of Red Hat Enterprise Linux 6; unbound as a component of Red Hat Enterprise Linux 7; unbound-devel as a component of Red Hat Enterprise Linux 7; unbound-libs as a component of Red Hat Enterprise Linux 7; unbound-python as a component of Red Hat Enterprise Linux 7; unbound.src as a component of Red Hat Enterprise Linux 7; python3-unbound as a component of Red Hat Enterprise Linux 8; unbound as a component of Red Hat Enterprise Linux 8; unbound-devel as a component of Red Hat Enterprise Linux 8; unbound-libs as a component of Red Hat Enterprise Linux 8; unbound.src as a component of Red Hat Enterprise Linux 8; python3-unbound as a component of Red Hat Enterprise Linux 9; unbound as a component of Red Hat Enterprise Linux 9; unbound-devel as a component of Red Hat Enterprise Linux 9; unbound-dracut as a component of Red Hat Enterprise Linux 9; unbound-libs as a component of Red Hat Enterprise Linux 9; unbound.src as a component of Red Hat Enterprise Linux 9; openshift/ose-rhel-coreos-8 as a component of Red Hat OpenShift Container Platform 4; and 1 more · Fixed: python3-unbound-0:1.26.1-1.hum1@aarch64 as a component of Red Hat Hardened Images; python3-unbound-0:1.26.1-1.hum1@x86_64 as a component of Red Hat Hardened Images; unbound-0:1.26.1-1.hum1@aarch64 as a component of Red Hat Hardened Images; unbound-0:1.26.1-1.hum1@src as a component of Red Hat Hardened Images; unbound-0:1.26.1-1.hum1@x86_64 as a component of Red Hat Hardened Images; unbound-anchor-0:1.26.1-1.hum1@aarch64 as a component of Red Hat Hardened Images; unbound-anchor-0:1.26.1-1.hum1@x86_64 as a component of Red Hat Hardened Images; unbound-devel-0:1.26.1-1.hum1@aarch64 as a component of Red Hat Hardened Images; unbound-devel-0:1.26.1-1.hum1@x86_64 as a component of Red Hat Hardened Images; unbound-dracut-0:1.26.1-1.hum1@aarch64 as a component of Red Hat Hardened Images; unbound-dracut-0:1.26.1-1.hum1@x86_64 as a component of Red Hat Hardened Images; unbound-libs-0:1.26.1-1.hum1@aarch64 as a component of Red Hat Hardened Images; unbound-libs-0:1.26.1-1.hum1@x86_64 as a component of Red Hat Hardened Images; unbound-munin-0:1.26.1-1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images; unbound-munin-0:1.26.1-1.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images; unbound-utils-0:1.26.1-1.hum1@aarch64 as a component of Red Hat Hardened Images; unbound-utils-0:1.26.1-1.hum1@x86_64 as a component of Red Hat Hardened Images
    After
    python3-unbound as a component of Red Hat Enterprise Linux 10; unbound as a component of Red Hat Enterprise Linux 10; unbound-anchor as a component of Red Hat Enterprise Linux 10; unbound-devel as a component of Red Hat Enterprise Linux 10; unbound-dracut as a component of Red Hat Enterprise Linux 10; unbound-libs as a component of Red Hat Enterprise Linux 10; unbound-utils as a component of Red Hat Enterprise Linux 10; unbound.src as a component of Red Hat Enterprise Linux 10; unbound as a component of Red Hat Enterprise Linux 6; unbound-devel as a component of Red Hat Enterprise Linux 6; unbound-libs as a component of Red Hat Enterprise Linux 6; unbound-python as a component of Red Hat Enterprise Linux 6; unbound.src as a component of Red Hat Enterprise Linux 6; unbound as a component of Red Hat Enterprise Linux 7; unbound-devel as a component of Red Hat Enterprise Linux 7; unbound-libs as a component of Red Hat Enterprise Linux 7; unbound-python as a component of Red Hat Enterprise Linux 7; unbound.src as a component of Red Hat Enterprise Linux 7; python3-unbound as a component of Red Hat Enterprise Linux 9; unbound as a component of Red Hat Enterprise Linux 9; unbound-devel as a component of Red Hat Enterprise Linux 9; unbound-dracut as a component of Red Hat Enterprise Linux 9; unbound-libs as a component of Red Hat Enterprise Linux 9; unbound.src as a component of Red Hat Enterprise Linux 9; openshift/ose-rhel-coreos-8 as a component of Red Hat OpenShift Container Platform 4; openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4 · Fixed: python3-unbound-0:1.16.2-5.14.el8_10.4.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8); python3-unbound-0:1.16.2-5.14.el8_10.4.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8); python3-unbound-0:1.16.2-5.14.el8_10.4.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8); python3-unbound-0:1.16.2-5.14.el8_10.4.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8); python3-unbound-debuginfo-0:1.16.2-5.14.el8_10.4.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8); python3-unbound-debuginfo-0:1.16.2-5.14.el8_10.4.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8); python3-unbound-debuginfo-0:1.16.2-5.14.el8_10.4.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8); python3-unbound-debuginfo-0:1.16.2-5.14.el8_10.4.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8); python3-unbound-debuginfo-0:1.16.2-5.14.el8_10.4.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-0:1.16.2-5.14.el8_10.4.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-0:1.16.2-5.14.el8_10.4.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-0:1.16.2-5.14.el8_10.4.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-0:1.16.2-5.14.el8_10.4.src as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-0:1.16.2-5.14.el8_10.4.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-debuginfo-0:1.16.2-5.14.el8_10.4.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-debuginfo-0:1.16.2-5.14.el8_10.4.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-debuginfo-0:1.16.2-5.14.el8_10.4.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-debuginfo-0:1.16.2-5.14.el8_10.4.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-debuginfo-0:1.16.2-5.14.el8_10.4.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-debugsource-0:1.16.2-5.14.el8_10.4.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-debugsource-0:1.16.2-5.14.el8_10.4.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-debugsource-0:1.16.2-5.14.el8_10.4.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-debugsource-0:1.16.2-5.14.el8_10.4.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-debugsource-0:1.16.2-5.14.el8_10.4.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-devel-0:1.16.2-5.14.el8_10.4.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-devel-0:1.16.2-5.14.el8_10.4.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-devel-0:1.16.2-5.14.el8_10.4.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-devel-0:1.16.2-5.14.el8_10.4.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-devel-0:1.16.2-5.14.el8_10.4.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8); unbound-libs-0:1.16.2-5.14.el8_10.4.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8); and 26 more
    Red Hat Product Security ↗
  6. Vendor guidanceAuthoritative vendor guidance changed from remediation: access.redhat.com/CVE-2026-82717 to remediation: access.redhat.com/CVE-2026-82717.
    Before
    remediation: access.redhat.com/CVE-2026-82717
    After
    remediation: access.redhat.com/CVE-2026-82717
    Red Hat Product Security ↗
  7. Remediation statusRemediation status changed from Mitigation available to Patch available.
    Before
    Mitigation available
    After
    Patch available
    Red Hat Product Security ↗
  8. Affected versionsThe structured affected or fixed version information changed.
    Before
    python3-unbound as a component of Red Hat Enterprise Linux 10; unbound as a component of Red Hat Enterprise Linux 10; unbound-anchor as a component of Red Hat Enterprise Linux 10; unbound-devel as a component of Red Hat Enterprise Linux 10; unbound-dracut as a component of Red Hat Enterprise Linux 10; unbound-libs as a component of Red Hat Enterprise Linux 10; unbound-utils as a component of Red Hat Enterprise Linux 10; unbound.src as a component of Red Hat Enterprise Linux 10; unbound as a component of Red Hat Enterprise Linux 6; unbound-devel as a component of Red Hat Enterprise Linux 6; unbound-libs as a component of Red Hat Enterprise Linux 6; unbound-python as a component of Red Hat Enterprise Linux 6; unbound.src as a component of Red Hat Enterprise Linux 6; unbound as a component of Red Hat Enterprise Linux 7; unbound-devel as a component of Red Hat Enterprise Linux 7; unbound-libs as a component of Red Hat Enterprise Linux 7; unbound-python as a component of Red Hat Enterprise Linux 7; unbound.src as a component of Red Hat Enterprise Linux 7; python3-unbound as a component of Red Hat Enterprise Linux 8; unbound as a component of Red Hat Enterprise Linux 8; unbound-devel as a component of Red Hat Enterprise Linux 8; unbound-libs as a component of Red Hat Enterprise Linux 8; unbound.src as a component of Red Hat Enterprise Linux 8; python3-unbound as a component of Red Hat Enterprise Linux 9; unbound as a component of Red Hat Enterprise Linux 9; unbound-devel as a component of Red Hat Enterprise Linux 9; unbound-dracut as a component of Red Hat Enterprise Linux 9; unbound-libs as a component of Red Hat Enterprise Linux 9; unbound.src as a component of Red Hat Enterprise Linux 9; unbound.src as a component of Red Hat Hardened Images; and 2 more
    After
    python3-unbound as a component of Red Hat Enterprise Linux 10; unbound as a component of Red Hat Enterprise Linux 10; unbound-anchor as a component of Red Hat Enterprise Linux 10; unbound-devel as a component of Red Hat Enterprise Linux 10; unbound-dracut as a component of Red Hat Enterprise Linux 10; unbound-libs as a component of Red Hat Enterprise Linux 10; unbound-utils as a component of Red Hat Enterprise Linux 10; unbound.src as a component of Red Hat Enterprise Linux 10; unbound as a component of Red Hat Enterprise Linux 6; unbound-devel as a component of Red Hat Enterprise Linux 6; unbound-libs as a component of Red Hat Enterprise Linux 6; unbound-python as a component of Red Hat Enterprise Linux 6; unbound.src as a component of Red Hat Enterprise Linux 6; unbound as a component of Red Hat Enterprise Linux 7; unbound-devel as a component of Red Hat Enterprise Linux 7; unbound-libs as a component of Red Hat Enterprise Linux 7; unbound-python as a component of Red Hat Enterprise Linux 7; unbound.src as a component of Red Hat Enterprise Linux 7; python3-unbound as a component of Red Hat Enterprise Linux 8; unbound as a component of Red Hat Enterprise Linux 8; unbound-devel as a component of Red Hat Enterprise Linux 8; unbound-libs as a component of Red Hat Enterprise Linux 8; unbound.src as a component of Red Hat Enterprise Linux 8; python3-unbound as a component of Red Hat Enterprise Linux 9; unbound as a component of Red Hat Enterprise Linux 9; unbound-devel as a component of Red Hat Enterprise Linux 9; unbound-dracut as a component of Red Hat Enterprise Linux 9; unbound-libs as a component of Red Hat Enterprise Linux 9; unbound.src as a component of Red Hat Enterprise Linux 9; openshift/ose-rhel-coreos-8 as a component of Red Hat OpenShift Container Platform 4; and 1 more · Fixed: python3-unbound-0:1.26.1-1.hum1@aarch64 as a component of Red Hat Hardened Images; python3-unbound-0:1.26.1-1.hum1@x86_64 as a component of Red Hat Hardened Images; unbound-0:1.26.1-1.hum1@aarch64 as a component of Red Hat Hardened Images; unbound-0:1.26.1-1.hum1@src as a component of Red Hat Hardened Images; unbound-0:1.26.1-1.hum1@x86_64 as a component of Red Hat Hardened Images; unbound-anchor-0:1.26.1-1.hum1@aarch64 as a component of Red Hat Hardened Images; unbound-anchor-0:1.26.1-1.hum1@x86_64 as a component of Red Hat Hardened Images; unbound-devel-0:1.26.1-1.hum1@aarch64 as a component of Red Hat Hardened Images; unbound-devel-0:1.26.1-1.hum1@x86_64 as a component of Red Hat Hardened Images; unbound-dracut-0:1.26.1-1.hum1@aarch64 as a component of Red Hat Hardened Images; unbound-dracut-0:1.26.1-1.hum1@x86_64 as a component of Red Hat Hardened Images; unbound-libs-0:1.26.1-1.hum1@aarch64 as a component of Red Hat Hardened Images; unbound-libs-0:1.26.1-1.hum1@x86_64 as a component of Red Hat Hardened Images; unbound-munin-0:1.26.1-1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images; unbound-munin-0:1.26.1-1.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images; unbound-utils-0:1.26.1-1.hum1@aarch64 as a component of Red Hat Hardened Images; unbound-utils-0:1.26.1-1.hum1@x86_64 as a component of Red Hat Hardened Images
    Red Hat Product Security ↗
  9. Vendor guidanceAuthoritative vendor guidance changed from remediation: access.redhat.com/CVE-2026-82717 to remediation: access.redhat.com/CVE-2026-82717.
    Before
    remediation: access.redhat.com/CVE-2026-82717
    After
    remediation: access.redhat.com/CVE-2026-82717
    Red Hat Product Security ↗
  10. Remediation statusRemediation status changed from Awaiting fix to Mitigation available.
    Before
    Awaiting fix
    After
    Mitigation available
    Red Hat Product Security ↗
  11. Affected versionsThe structured affected or fixed version information changed.
    Before
    unbound.src as a component of Red Hat Hardened Images; openshift/ose-rhel-coreos-8 as a component of Red Hat OpenShift Container Platform 4; openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4
    After
    python3-unbound as a component of Red Hat Enterprise Linux 10; unbound as a component of Red Hat Enterprise Linux 10; unbound-anchor as a component of Red Hat Enterprise Linux 10; unbound-devel as a component of Red Hat Enterprise Linux 10; unbound-dracut as a component of Red Hat Enterprise Linux 10; unbound-libs as a component of Red Hat Enterprise Linux 10; unbound-utils as a component of Red Hat Enterprise Linux 10; unbound.src as a component of Red Hat Enterprise Linux 10; unbound as a component of Red Hat Enterprise Linux 6; unbound-devel as a component of Red Hat Enterprise Linux 6; unbound-libs as a component of Red Hat Enterprise Linux 6; unbound-python as a component of Red Hat Enterprise Linux 6; unbound.src as a component of Red Hat Enterprise Linux 6; unbound as a component of Red Hat Enterprise Linux 7; unbound-devel as a component of Red Hat Enterprise Linux 7; unbound-libs as a component of Red Hat Enterprise Linux 7; unbound-python as a component of Red Hat Enterprise Linux 7; unbound.src as a component of Red Hat Enterprise Linux 7; python3-unbound as a component of Red Hat Enterprise Linux 8; unbound as a component of Red Hat Enterprise Linux 8; unbound-devel as a component of Red Hat Enterprise Linux 8; unbound-libs as a component of Red Hat Enterprise Linux 8; unbound.src as a component of Red Hat Enterprise Linux 8; python3-unbound as a component of Red Hat Enterprise Linux 9; unbound as a component of Red Hat Enterprise Linux 9; unbound-devel as a component of Red Hat Enterprise Linux 9; unbound-dracut as a component of Red Hat Enterprise Linux 9; unbound-libs as a component of Red Hat Enterprise Linux 9; unbound.src as a component of Red Hat Enterprise Linux 9; unbound.src as a component of Red Hat Hardened Images; and 2 more
    Red Hat Product Security ↗
  12. ENISA EUVD mappingEUVD-2026-80292 was added to the official ENISA EUVD mapping for this CVE.
    Before
    not recorded
    After
    {"euvdId":"EUVD-2026-80292"}
    ENISA EUVD ↗
  13. Affected versionsThe structured affected or fixed version information changed.
    Before
    openshift/ose-rhel-coreos-8 as a component of Red Hat OpenShift Container Platform 4; openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4
    After
    unbound.src as a component of Red Hat Hardened Images; openshift/ose-rhel-coreos-8 as a component of Red Hat OpenShift Container Platform 4; openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4
    Red Hat Product Security ↗
  14. Vendor guidanceAuthoritative vendor guidance changed: added patch: nlnetlabs.nl/CVE-2026-82717.txt.
    Before
    remediation: nlnetlabs.nl/CVE-2026-82717.txt
    After
    patch: nlnetlabs.nl/CVE-2026-82717.txt · remediation: nlnetlabs.nl/CVE-2026-82717.txt
    sep@nlnetlabs.nl ↗
  15. Catalogue recordCVE added to the BlackTree catalogue.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2026-80292↗Vendor CSAF · Red Hat Product Security↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-82717 · cve.blacktree.nl