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Full vulnerability report · 2026
CVE-2026-18477High confidence

Tar: tar: toctou in incremental dumpdir 'x' rename handling allows restore path escape

Red Hat · Red Hat Enterprise Linux 10

Official source article: Red Hat RHSA-2026:49361 ↗. Check the applicable product and release in the original source.

4.4MediumCVSS 3.1
Recommended action
Patch only the product branches with a verified fix

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority. Verified remediation exists for at least one product or source, but 4 structured product or package states 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 severityMediumOperational priority:Low, lowered one band.downgradedsince 22 Sep 2026

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • Exploitation requires an existing local or physical foothold with privileges.
  • EPSS is 0.08% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict local access and enforce least privilege on affected hosts.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Red Hat Red Hat Enterprise Linux 10 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: No default targetRemediation target: Normal maintenance

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 4 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Distribution package intelligence

Release-specific package status

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

5 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 4 affected package states 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
Debian trixietrixie · sourcetarAffected, no fix publishedDebian currently tracks this release as open.Not published in this feedDebian Security Tracker ↗Source updated 6 Oct 2026
Debian bookwormbookworm · sourcetarAffected, no fix publishedDebian currently tracks this release as open.Not published in this feedDebian Security Tracker ↗Source updated 6 Oct 2026
Debian forkyforky · sourcetarAffected, no fix publishedDebian currently tracks this release as open.Not published in this feedDebian Security Tracker ↗Source updated 6 Oct 2026
Debian sidsid · sourcetarAffected, no fix publishedDebian currently tracks this release as open.Not published in this feedDebian Security Tracker ↗Source updated 6 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivetarUnder evaluationCanonical reports that the package might be affected and still needs evaluation or fixing.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 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-2026-18477 · CSAF 2.0 · revision 11 · interimSUSE Product Security TeamCVE-2026-18477
126 known affected

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

  • tar as component of SUSE Linux Enterprise Desktop 15 SP7
  • tar-lang as component of SUSE Linux Enterprise Desktop 15 SP7
  • tar-rmt as component of SUSE Linux Enterprise Desktop 15 SP7
  • tar as component of SUSE Linux Enterprise High Performance Computing 12 SP5
  • tar-lang as component of SUSE Linux Enterprise High Performance Computing 12 SP5
  • tar as component of SUSE Linux Enterprise High Performance Computing 15 SP1
  • tar-lang as component of SUSE Linux Enterprise High Performance Computing 15 SP1
  • tar-rmt as component of SUSE Linux Enterprise High Performance Computing 15 SP1
  • tar as component of SUSE Linux Enterprise High Performance Computing 15 SP2
  • tar-lang as component of SUSE Linux Enterprise High Performance Computing 15 SP2
  • tar-rmt as component of SUSE Linux Enterprise High Performance Computing 15 SP2
  • tar as component of SUSE Linux Enterprise High Performance Computing 15 SP3
Summary
A TOCTOU (Time-of-Check Time-of-Use) vulnerability in GNU tar's incremental dumpdir 'X' rename handling allows a local attacker with write access to a directory being backed up to influence the restore process if the attacker has access to the system where the restore is being performed. During restoration, files or directories may be created, renamed or overwritten outside the intended extraction directory. This could lead to unauthorized file modification or, in some cases, privilege escalation. Exploitation does not require the attacker to modify or craft the archive, and standard backup and restore workflows-including extracting into a newly created directory without using the -P option do not mitigate the issue.
Remediation
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
CVE-2026-18477 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitytar: tar: TOCTOU in incremental dumpdir 'X' rename handling allows restore path escape
4 known affected

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

  • tar.src as a component of Red Hat Enterprise Linux 6
  • tar.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
Summary
A TOCTOU (Time-of-Check Time-of-Use) vulnerability in GNU tar's incremental dumpdir 'X' rename handling allows a local attacker with write access to a directory being backed up to influence the restore process if the attacker has access to the system where the restore is being performed. During restoration, files or directories may be created, renamed or overwritten outside the intended extraction directory. This could lead to unauthorized file modification or, in some cases, privilege escalation. Exploitation does not require the attacker to modify or craft the archive, and standard backup and restore workflows—including extracting into a newly created directory without using the -P option do not mitigate the issue.
Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
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-2026-52336

No EUVD known-exploited evidence

A TOCTOU (Time-of-Check Time-of-Use) vulnerability in GNU tar's incremental dumpdir 'X' rename handling allows a local attacker with write access to a directory being backed up to influence the restore process if the attacker has access to the system where the restore is being performed. During restoration, files or directories may be created, renamed or overwritten outside the intended extraction directory. This could lead to unauthorized file modification or, in some cases, privilege escalation. Exploitation does not require the attacker to modify or craft the archive, and standard backup and restore workflows—including extracting into a newly created directory without using the -P option do not mitigate the issue.

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
4.4 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch only the product branches with a verified fix

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority. Verified remediation exists for at least one product or source, but 4 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

A TOCTOU (Time-of-Check Time-of-Use) vulnerability in GNU tar's incremental dumpdir 'X' rename handling allows a local attacker with write access to a directory being backed up to influence the restore process if the attacker has access to the system where the restore is being performed. During restoration, files or directories may be created, renamed or overwritten outside the intended extraction directory. This could lead to unauthorized file modification or, in some cases, privilege escalation. Exploitation does not require the attacker to modify or craft the archive, and standard backup and restore workflows—including extracting into a newly created directory without using the -P option do not mitigate the issue.

What

A TOCTOU (Time-of-Check Time-of-Use) vulnerability in GNU tar's incremental dumpdir 'X' rename handling allows a local attacker with write access to a directory being backed up to influence the restore process if the attacker has access to the system where the restore is being performed. During restoration, files or directories may be created, renamed or overwritten outside the intended extraction directory. This could lead to unauthorized file modification or, in some cases, privilege escalation. Exploitation does not require the attacker to modify or craft the archive, and standard backup and restore workflows—including extracting into a newly created directory without using the -P option do not mitigate the issue.

Why

The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may gain additional privileges.

What

A TOCTOU (Time-of-Check Time-of-Use) vulnerability in GNU tar's incremental dumpdir 'X' rename handling allows a local attacker with write access to a directory being backed up to influence the restore process if the attacker has access to the system where the restore is being performed. During restoration, files or directories may be created, renamed or overwritten outside the intended extraction directory. This could lead to unauthorized file modification or, in some cases, privilege escalation. Exploitation does not require the attacker to modify or craft the archive, and standard backup and restore workflows—including extracting into a newly created directory without using the -P option do not mitigate the issue.

Why

The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may gain additional privileges.

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
local access → Time-of-check Time-of-use (TOCTOU) Race Condition → gain additional privileges
Attack surface
Local
Privileges required
Low: a basic authenticated account is required
User interaction
Required interaction required
Attack complexity
High: exploitation depends on specific conditions
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-367 ↗

CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition. The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.PRLowPrivileges required: The attacker needs basic user-level privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.IHighIntegrity impact: A successful attack can cause a major loss.ANoneAvailability impact: No direct loss is represented by this metric.
Post-exploitation / living off the land
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
Privilege escalationCWE-367
A

Official authority intelligence

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

ENISA EUVD · EUVD-2026-52336Official EUVD mapping

A TOCTOU (Time-of-Check Time-of-Use) vulnerability in GNU tar's incremental dumpdir 'X' rename handling allows a local attacker with write access to a directory being backed up to influence the restore process if the attacker has access to the system where the restore is being performed. During restoration, files or directories may be created, renamed or overwritten outside the intended extraction directory. This could lead to unauthorized file modification or, in some cases, privilege escalation. Exploitation does not require the attacker to modify or craft the archive, and standard backup and restore workflows—including extracting into a newly created directory without using the -P option do not mitigate the issue.

Official EUVD record ↗
BSI · German · WID-SEC-2026-2633GNU tar: Mehrere Schwachstellen ermöglichen Manipulation von Dateien

Ein Angreifer kann mehrere Schwachstellen in GNU tar ausnutzen, um Dateien zu manipulieren.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260805Security Bulletin 5 Aug 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 5 Aug 2026, published on 5 August 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1249Multiples vulnérabilités dans les produits VMware

ord?id=CVE-2026-14457 Référence CVE CVE-2026-15308 https://www.cve.org/CVERecord?id=CVE-2026-15308 Référence CVE CVE-2026-15310 https://www.cve.org/CVERecord?id=CVE-2026-15310 Référence CVE CVE-2026-15534 https://www.cve.org/CVERecord?id=CVE-2026-15534 Référence CVE CVE-2026-15588 https://www.cve.org/CVERecord?id=CVE-2026-15588 Référence CVE CVE-2026-15806 https://www.cve.org/CVERecord?id=CVE-2026-15806 Référence CVE CVE-2026-16118 https://www.cve.org/CVERecord?id=CVE-2026-16118 Référence CVE CVE-2026-1703 https://www.cve.org/CVERecord?id=CVE-2026-1703 Référence CVE CVE-2026-17084 https://www.cve.org/CVERecord?id=CVE-2026-17084 Référence CVE CVE-2026-18477 https://www.cve.org/CVERecord?id=CVE-2026-18477 Référence CVE CVE-2026-18503 https://www.cve.org/CVERecord?id=CVE-2026-18503 Référence CVE CVE-2026-18508 https://www.cve.org/CVERecord?id=CVE-2026-18508 Référence CVE CVE-2026-18798 https://www.cve.org/CVERecord?id=CVE-2026-18798 Référence CVE CVE-2026-18938 https://www.cve.org/CVERecord?id=CVE-2026-18938 Référence CVE CVE-2026-19032 https://www.cve.org/CVERecord?id=CVE-2026-19032 Référence CVE CVE-2026-19487 https://www.cve.org/CVERecord?id=CVE-2026-19487 Référence CVE CVE-2026-19542 https://www.cve.org/CVERecord?id=CVE-2026-19542 Référence CVE CVE-2026-1965 https://www.cve.org/CVERecord?id=C

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-028462GNU Project等の複数ベンダの製品におけるTime-of-check Time-of-use (TOCTOU) 競合状態の脆弱性

GNU tarの増分ダンプディレクトリ「X」リネーム処理におけるTOCTOU（Time-of-Check Time-of-Use）脆弱性により、バックアップ対象ディレクトリへの書き込み権限を持つローカル攻撃者が、復元が行われるシステムにアクセスできる場合には復元プロセスに影響を与えることが可能です。復元中に、ファイルやディレクトリが意図された展開ディレクトリの外側に作成されたり、リネームされたり、または上書きされたりする可能性があります。これにより、不正なファイル改ざんが発生したり、場合によっては権限昇格が起こったりする恐れがあります。攻撃にあたってはアーカイブの改変や作成が必要なく、標準的なバックアップおよび復元のワークフロー（-Pオプションを使わず新規作成ディレクトリに展開する場合も含む）では問題の緩和がされません。

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. Limit untrusted access and use least privilege until authoritative guidance is available.
Official vendor articles2 stored documents

Linked articles are downloaded and versioned as source evidence. A CVE mention or approved update relationship does not, by itself, verify a fix for every product branch.

  • Vendor release notes →Original publisher ↗Searchable text snapshot · Captured 29 Sep 2026Red Hat Product Errata RHSA-2026:49361 - Security Advisory Issued: 2026-08-01 Updated: 2026-08-01 RHSA-2026:49361 - Security Advisory Overview Updated Packages Synopsis Red Hat Hardened Images RPMs Security Update Type/Severity Security Advisory: Topic An update for Red Hat Hardened Images RPMs is now available
  • CVE-2026-18477 - Red Hat Customer Portal →Original publisher ↗Searchable text snapshot · Captured 29 Sep 2026CVE-2026-18477 Description A TOCTOU (Time-of-Check Time-of-Use) vulnerability in GNU tar's incremental dumpdir 'X' rename handling allows a local attacker with write access to a directory being backed up to influence the restore process if the attacker has access to the system where the restore is being performed. Duri
04

Evidence and provenance

Published 3 Aug 2026 · Last source change 22 Sept 2026, 21:29 UTC · CWE-367 · Time-of-check Time-of-use (TOCTOU) Race Condition

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 2026-08-14
European sourceENISA EUVD · EUVD-2026-52336
Product sourceVendor CSAF · SUSE Product Security Team
Remediation sourceVendor CSAF · SUSE Product Security Team
CWE sourceCNA
NVD statusNVD modified after enrichment

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: added remediation: access.redhat.com/RHSA-2026:49361; removed remediation: access.redhat.com/RHSA-2026:70390; removed vendor advisory: access.redhat.com/RHSA-2026:70390.
    Before
    remediation: access.redhat.com/RHSA-2026:70390 · vendor advisory: access.redhat.com/CVE-2026-18477 · vendor advisory: access.redhat.com/RHSA-2026:49361 · 2 more references
    After
    remediation: access.redhat.com/RHSA-2026:49361 · vendor advisory: access.redhat.com/CVE-2026-18477 · vendor advisory: access.redhat.com/RHSA-2026:49361 · 1 more references
    secalert@redhat.com ↗
  2. Vendor guidanceAuthoritative vendor guidance changed: added remediation: access.redhat.com/RHSA-2026:70390; added vendor advisory: access.redhat.com/RHSA-2026:70390; removed remediation: access.redhat.com/RHSA-2026:49361.
    Before
    remediation: access.redhat.com/RHSA-2026:49361 · vendor advisory: access.redhat.com/CVE-2026-18477 · vendor advisory: access.redhat.com/RHSA-2026:49361 · 1 more references
    After
    remediation: access.redhat.com/RHSA-2026:70390 · vendor advisory: access.redhat.com/CVE-2026-18477 · vendor advisory: access.redhat.com/RHSA-2026:49361 · 2 more references
    secalert@redhat.com ↗
  3. Affected versionsThe structured affected or fixed version information changed.
    Before
    See the vendor and CVE records for the affected range. · Fixed: Red Hat Enterprise Linux 10: 2:1.35-13.el10_2 < *; Red Hat Enterprise Linux 9: 2:1.34-13.el9_8 < *; Red Hat Discovery 2: 1788205779 < *; Red Hat Hardened Images: 1.35-9.1.hum1 < *; Red Hat Update Infrastructure 5: 1788880445 < *, 1788880464 < *, 1788880456 < *, 1788765051 < *, 1788880581 < *
    After
    See the vendor and CVE records for the affected range. · Fixed: Red Hat Enterprise Linux 10: 2:1.35-13.el10_2 < *; Red Hat Enterprise Linux 8: 2:1.30-13.el8_10 < *; Red Hat Enterprise Linux 9: 2:1.34-13.el9_8 < *; Red Hat Discovery 2: 1788205779 < *; Red Hat Hardened Images: 1.35-9.1.hum1 < *; Red Hat Update Infrastructure 5: 1788880445 < *, 1788880464 < *, 1788880456 < *, 1788765051 < *, 1788880581 < *
    CNA ↗
  4. Affected versionsThe structured affected or fixed version information changed.
    Before
    tar.src as a component of Red Hat Enterprise Linux 6; tar.src as a component of Red Hat Enterprise Linux 7; tar as a component of Red Hat Enterprise Linux 8; tar.src as a component of Red Hat Enterprise Linux 8; 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: tar-2:1.35-13.el10_2.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-2:1.35-13.el10_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-2:1.35-13.el10_2.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-2:1.35-13.el10_2.src as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-2:1.35-13.el10_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debuginfo-2:1.35-13.el10_2.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debuginfo-2:1.35-13.el10_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debuginfo-2:1.35-13.el10_2.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debuginfo-2:1.35-13.el10_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debugsource-2:1.35-13.el10_2.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debugsource-2:1.35-13.el10_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debugsource-2:1.35-13.el10_2.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debugsource-2:1.35-13.el10_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-2:1.34-13.el9_8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-2:1.34-13.el9_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-2:1.34-13.el9_8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-2:1.34-13.el9_8.src as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-2:1.34-13.el9_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debuginfo-2:1.34-13.el9_8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debuginfo-2:1.34-13.el9_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debuginfo-2:1.34-13.el9_8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debuginfo-2:1.34-13.el9_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debugsource-2:1.34-13.el9_8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debugsource-2:1.34-13.el9_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debugsource-2:1.34-13.el9_8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debugsource-2:1.34-13.el9_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); registry.redhat.io/discovery/discovery-server-rhel9@sha256:5efae8059c9c15454abac947b8482412686d60aaf5c104557d463e8282e340af_amd64 as a component of Red Hat Discovery 2; registry.redhat.io/discovery/discovery-server-rhel9@sha256:e9592a7aa5db3a61a7248d7b0305f3eb2fae189b1d078e483f1cc439f5b2351d_arm64 as a component of Red Hat Discovery 2; tar-main@aarch64 as a component of Red Hat Hardened Images; tar-main@src as a component of Red Hat Hardened Images; and 6 more
    After
    tar.src as a component of Red Hat Enterprise Linux 6; tar.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: tar-2:1.35-13.el10_2.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-2:1.35-13.el10_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-2:1.35-13.el10_2.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-2:1.35-13.el10_2.src as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-2:1.35-13.el10_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debuginfo-2:1.35-13.el10_2.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debuginfo-2:1.35-13.el10_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debuginfo-2:1.35-13.el10_2.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debuginfo-2:1.35-13.el10_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debugsource-2:1.35-13.el10_2.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debugsource-2:1.35-13.el10_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debugsource-2:1.35-13.el10_2.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debugsource-2:1.35-13.el10_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-2:1.30-13.el8_10.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8); tar-2:1.30-13.el8_10.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8); tar-2:1.30-13.el8_10.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8); tar-2:1.30-13.el8_10.src as a component of Red Hat Enterprise Linux BaseOS (v. 8); tar-2:1.30-13.el8_10.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8); tar-debuginfo-2:1.30-13.el8_10.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8); tar-debuginfo-2:1.30-13.el8_10.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8); tar-debuginfo-2:1.30-13.el8_10.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8); tar-debuginfo-2:1.30-13.el8_10.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8); tar-debugsource-2:1.30-13.el8_10.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8); tar-debugsource-2:1.30-13.el8_10.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8); tar-debugsource-2:1.30-13.el8_10.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8); tar-debugsource-2:1.30-13.el8_10.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8); tar-2:1.34-13.el9_8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-2:1.34-13.el9_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-2:1.34-13.el9_8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-2:1.34-13.el9_8.src as a component of Red Hat Enterprise Linux BaseOS (v. 9); and 19 more
    Red Hat Product Security ↗
  5. Affected versionsThe structured affected or fixed version information changed.
    Before
    See the vendor and CVE records for the affected range. · Fixed: Red Hat Hardened Images: 1.35-9.1.hum1 < *
    After
    See the vendor and CVE records for the affected range. · Fixed: Red Hat Enterprise Linux 10: 2:1.35-13.el10_2 < *; Red Hat Enterprise Linux 9: 2:1.34-13.el9_8 < *; Red Hat Discovery 2: 1788205779 < *; Red Hat Hardened Images: 1.35-9.1.hum1 < *; Red Hat Update Infrastructure 5: 1788880445 < *, 1788880464 < *, 1788880456 < *, 1788765051 < *, 1788880581 < *
    CNA ↗
  6. Vendor guidanceAuthoritative vendor guidance changed: added remediation: access.redhat.com/RHSA-2026:49361; removed remediation: access.redhat.com/RHSA-2026:66018; removed vendor advisory: access.redhat.com/RHSA-2026:66018.
    Before
    remediation: access.redhat.com/RHSA-2026:66018 · vendor advisory: access.redhat.com/CVE-2026-18477 · vendor advisory: access.redhat.com/RHSA-2026:49361 · 2 more references
    After
    remediation: access.redhat.com/RHSA-2026:49361 · vendor advisory: access.redhat.com/CVE-2026-18477 · vendor advisory: access.redhat.com/RHSA-2026:49361 · 1 more references
    secalert@redhat.com ↗
  7. Vendor guidanceAuthoritative vendor guidance changed: added remediation: access.redhat.com/RHSA-2026:66018; added vendor advisory: access.redhat.com/RHSA-2026:66018; removed remediation: access.redhat.com/RHSA-2026:49361.
    Before
    remediation: access.redhat.com/RHSA-2026:49361 · vendor advisory: access.redhat.com/CVE-2026-18477 · vendor advisory: access.redhat.com/RHSA-2026:49361 · 1 more references
    After
    remediation: access.redhat.com/RHSA-2026:66018 · vendor advisory: access.redhat.com/CVE-2026-18477 · vendor advisory: access.redhat.com/RHSA-2026:49361 · 2 more references
    secalert@redhat.com ↗
  8. Affected versionsThe structured affected or fixed version information changed.
    Before
    See the vendor and CVE records for the affected range. · Fixed: 2:1.35-13.el10_2 < *; 2:1.34-13.el9_8 < *; 1788205779 < *; 1.35-9.1.hum1 < *
    After
    See the vendor and CVE records for the affected range. · Fixed: 2:1.35-13.el10_2 < *; 2:1.34-13.el9_8 < *; 1788205779 < *; 1.35-9.1.hum1 < *; 1788880445 < *; 1788880464 < *; 1788880456 < *; 1788765051 < *
    CNA ↗
  9. Affected versionsThe structured affected or fixed version information changed.
    Before
    tar.src as a component of Red Hat Enterprise Linux 6; tar.src as a component of Red Hat Enterprise Linux 7; tar as a component of Red Hat Enterprise Linux 8; tar.src as a component of Red Hat Enterprise Linux 8; 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: tar-2:1.35-13.el10_2.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-2:1.35-13.el10_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-2:1.35-13.el10_2.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-2:1.35-13.el10_2.src as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-2:1.35-13.el10_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debuginfo-2:1.35-13.el10_2.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debuginfo-2:1.35-13.el10_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debuginfo-2:1.35-13.el10_2.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debuginfo-2:1.35-13.el10_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debugsource-2:1.35-13.el10_2.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debugsource-2:1.35-13.el10_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debugsource-2:1.35-13.el10_2.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debugsource-2:1.35-13.el10_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-2:1.34-13.el9_8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-2:1.34-13.el9_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-2:1.34-13.el9_8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-2:1.34-13.el9_8.src as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-2:1.34-13.el9_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debuginfo-2:1.34-13.el9_8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debuginfo-2:1.34-13.el9_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debuginfo-2:1.34-13.el9_8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debuginfo-2:1.34-13.el9_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debugsource-2:1.34-13.el9_8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debugsource-2:1.34-13.el9_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debugsource-2:1.34-13.el9_8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debugsource-2:1.34-13.el9_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); registry.redhat.io/discovery/discovery-server-rhel9@sha256:5efae8059c9c15454abac947b8482412686d60aaf5c104557d463e8282e340af_amd64 as a component of Red Hat Discovery 2; registry.redhat.io/discovery/discovery-server-rhel9@sha256:e9592a7aa5db3a61a7248d7b0305f3eb2fae189b1d078e483f1cc439f5b2351d_arm64 as a component of Red Hat Discovery 2; tar-main@aarch64 as a component of Red Hat Hardened Images; tar-main@src as a component of Red Hat Hardened Images; and 1 more
    After
    tar.src as a component of Red Hat Enterprise Linux 6; tar.src as a component of Red Hat Enterprise Linux 7; tar as a component of Red Hat Enterprise Linux 8; tar.src as a component of Red Hat Enterprise Linux 8; 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: tar-2:1.35-13.el10_2.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-2:1.35-13.el10_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-2:1.35-13.el10_2.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-2:1.35-13.el10_2.src as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-2:1.35-13.el10_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debuginfo-2:1.35-13.el10_2.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debuginfo-2:1.35-13.el10_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debuginfo-2:1.35-13.el10_2.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debuginfo-2:1.35-13.el10_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debugsource-2:1.35-13.el10_2.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debugsource-2:1.35-13.el10_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debugsource-2:1.35-13.el10_2.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debugsource-2:1.35-13.el10_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-2:1.34-13.el9_8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-2:1.34-13.el9_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-2:1.34-13.el9_8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-2:1.34-13.el9_8.src as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-2:1.34-13.el9_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debuginfo-2:1.34-13.el9_8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debuginfo-2:1.34-13.el9_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debuginfo-2:1.34-13.el9_8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debuginfo-2:1.34-13.el9_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debugsource-2:1.34-13.el9_8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debugsource-2:1.34-13.el9_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debugsource-2:1.34-13.el9_8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debugsource-2:1.34-13.el9_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); registry.redhat.io/discovery/discovery-server-rhel9@sha256:5efae8059c9c15454abac947b8482412686d60aaf5c104557d463e8282e340af_amd64 as a component of Red Hat Discovery 2; registry.redhat.io/discovery/discovery-server-rhel9@sha256:e9592a7aa5db3a61a7248d7b0305f3eb2fae189b1d078e483f1cc439f5b2351d_arm64 as a component of Red Hat Discovery 2; tar-main@aarch64 as a component of Red Hat Hardened Images; tar-main@src as a component of Red Hat Hardened Images; and 6 more
    Red Hat Product Security ↗
  10. Vendor guidanceAuthoritative vendor guidance changed: added remediation: access.redhat.com/RHSA-2026:49361; removed remediation: access.redhat.com/RHSA-2026:61586; removed vendor advisory: access.redhat.com/RHSA-2026:61586.
    Before
    remediation: access.redhat.com/RHSA-2026:61586 · vendor advisory: access.redhat.com/CVE-2026-18477 · vendor advisory: access.redhat.com/RHSA-2026:49361 · 2 more references
    After
    remediation: access.redhat.com/RHSA-2026:49361 · vendor advisory: access.redhat.com/CVE-2026-18477 · vendor advisory: access.redhat.com/RHSA-2026:49361 · 1 more references
    secalert@redhat.com ↗
  11. Vendor guidanceAuthoritative vendor guidance changed: added remediation: access.redhat.com/RHSA-2026:61586; added vendor advisory: access.redhat.com/RHSA-2026:61586; removed remediation: access.redhat.com/RHSA-2026:49361.
    Before
    remediation: access.redhat.com/RHSA-2026:49361 · vendor advisory: access.redhat.com/CVE-2026-18477 · vendor advisory: access.redhat.com/RHSA-2026:49361 · 1 more references
    After
    remediation: access.redhat.com/RHSA-2026:61586 · vendor advisory: access.redhat.com/CVE-2026-18477 · vendor advisory: access.redhat.com/RHSA-2026:49361 · 2 more references
    secalert@redhat.com ↗
  12. Affected versionsThe structured affected or fixed version information changed.
    Before
    See the vendor and CVE records for the affected range. · Fixed: 2:1.34-13.el9_8 < *; 1788205779 < *; 1.35-9.1.hum1 < *
    After
    See the vendor and CVE records for the affected range. · Fixed: 2:1.35-13.el10_2 < *; 2:1.34-13.el9_8 < *; 1788205779 < *; 1.35-9.1.hum1 < *
    CNA ↗
  13. Vendor guidanceAuthoritative vendor guidance changed from remediation: access.redhat.com/CVE-2026-18477 to remediation: access.redhat.com/CVE-2026-18477.
    Before
    remediation: access.redhat.com/CVE-2026-18477
    After
    remediation: access.redhat.com/CVE-2026-18477
    Red Hat Product Security ↗
  14. Affected versionsThe structured affected or fixed version information changed.
    Before
    tar as a component of Red Hat Enterprise Linux 10; tar.src as a component of Red Hat Enterprise Linux 10; tar.src as a component of Red Hat Enterprise Linux 6; tar.src as a component of Red Hat Enterprise Linux 7; tar as a component of Red Hat Enterprise Linux 8; tar.src as a component of Red Hat Enterprise Linux 8; tar as a component of Red Hat Enterprise Linux 9; tar.src as a component of Red Hat Enterprise Linux 9; openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4 · Fixed: tar-main@aarch64 as a component of Red Hat Hardened Images; tar-main@src as a component of Red Hat Hardened Images; tar-main@x86_64 as a component of Red Hat Hardened Images
    After
    tar.src as a component of Red Hat Enterprise Linux 6; tar.src as a component of Red Hat Enterprise Linux 7; tar as a component of Red Hat Enterprise Linux 8; tar.src as a component of Red Hat Enterprise Linux 8; 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: tar-2:1.35-13.el10_2.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-2:1.35-13.el10_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-2:1.35-13.el10_2.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-2:1.35-13.el10_2.src as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-2:1.35-13.el10_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debuginfo-2:1.35-13.el10_2.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debuginfo-2:1.35-13.el10_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debuginfo-2:1.35-13.el10_2.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debuginfo-2:1.35-13.el10_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debugsource-2:1.35-13.el10_2.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debugsource-2:1.35-13.el10_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debugsource-2:1.35-13.el10_2.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-debugsource-2:1.35-13.el10_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 10); tar-2:1.34-13.el9_8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-2:1.34-13.el9_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-2:1.34-13.el9_8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-2:1.34-13.el9_8.src as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-2:1.34-13.el9_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debuginfo-2:1.34-13.el9_8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debuginfo-2:1.34-13.el9_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debuginfo-2:1.34-13.el9_8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debuginfo-2:1.34-13.el9_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debugsource-2:1.34-13.el9_8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debugsource-2:1.34-13.el9_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debugsource-2:1.34-13.el9_8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9); tar-debugsource-2:1.34-13.el9_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); registry.redhat.io/discovery/discovery-server-rhel9@sha256:5efae8059c9c15454abac947b8482412686d60aaf5c104557d463e8282e340af_amd64 as a component of Red Hat Discovery 2; registry.redhat.io/discovery/discovery-server-rhel9@sha256:e9592a7aa5db3a61a7248d7b0305f3eb2fae189b1d078e483f1cc439f5b2351d_arm64 as a component of Red Hat Discovery 2; tar-main@aarch64 as a component of Red Hat Hardened Images; tar-main@src as a component of Red Hat Hardened Images; and 1 more
    Red Hat Product Security ↗
  15. Vendor guidanceAuthoritative vendor guidance changed: added remediation: access.redhat.com/RHSA-2026:49361; removed remediation: access.redhat.com/RHSA-2026:61783; removed vendor advisory: access.redhat.com/RHSA-2026:61783.
    Before
    remediation: access.redhat.com/RHSA-2026:61783 · vendor advisory: access.redhat.com/CVE-2026-18477 · vendor advisory: access.redhat.com/RHSA-2026:49361 · 2 more references
    After
    remediation: access.redhat.com/RHSA-2026:49361 · vendor advisory: access.redhat.com/CVE-2026-18477 · vendor advisory: access.redhat.com/RHSA-2026:49361 · 1 more references
    secalert@redhat.com ↗
  16. Vendor guidanceAuthoritative vendor guidance changed: added remediation: access.redhat.com/RHSA-2026:61783; added vendor advisory: access.redhat.com/RHSA-2026:61783; removed remediation: access.redhat.com/RHSA-2026:49361.
    Before
    remediation: access.redhat.com/RHSA-2026:49361 · vendor advisory: access.redhat.com/CVE-2026-18477 · vendor advisory: access.redhat.com/RHSA-2026:49361 · 1 more references
    After
    remediation: access.redhat.com/RHSA-2026:61783 · vendor advisory: access.redhat.com/CVE-2026-18477 · vendor advisory: access.redhat.com/RHSA-2026:49361 · 2 more references
    secalert@redhat.com ↗
  17. Affected versionsThe structured affected or fixed version information changed.
    Before
    See the vendor and CVE records for the affected range. · Fixed: 2:1.34-13.el9_8 < *; 1.35-9.1.hum1 < *
    After
    See the vendor and CVE records for the affected range. · Fixed: 2:1.34-13.el9_8 < *; 1788205779 < *; 1.35-9.1.hum1 < *
    CNA ↗
  18. Affected versionsThe structured affected or fixed version information changed.
    Before
    See the vendor and CVE records for the affected range. · Fixed: 1.35-9.1.hum1 < *
    After
    See the vendor and CVE records for the affected range. · Fixed: 2:1.34-13.el9_8 < *; 1.35-9.1.hum1 < *
    CNA ↗
  19. Affected versionsThe structured affected or fixed version information changed.
    Before
    See the vendor and CVE records for the affected range. · Fixed: 2:1.35-13.el10_2 < *; 2:1.34-13.el9_8 < *; 1788205779 < *; 1.35-9.1.hum1 < *; 1788880445 < *; 1788880464 < *; 1788880456 < *; 1788765051 < *
    After
    See the vendor and CVE records for the affected range. · Fixed: Red Hat Hardened Images: 1.35-9.1.hum1 < *
    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-2026-52336↗Vendor CSAF · SUSE Product Security Team↗CVE authority or vendor reference · Red Hat RHSA-2026:49361↗Vendor advisory↗Vendor advisory↗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-2026-18477 · cve.blacktree.nl