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Full vulnerability report · 2026
CVE-2026-2100High confidence

P11-kit: null dereference via c_derivekey with specific null parameters

p11-glue · p11-kit

Official source article: Red Hat RHSA-2026:18143 ↗. Check the applicable product and release in the original source.

5.3MediumCVSS 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 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 severityMediumOperational priority:Medium, 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 1.16% 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 p11-glue p11-kit 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: As exposure requiresRemediation target: Within 365 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 findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

7 package states
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 · mainp11-kitVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.0.26.2-r0Alpine Security Database ↗Source updated 3 Oct 2026
Alpine v3.22v3.22 · mainp11-kitVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.0.26.2-r0Alpine Security Database ↗Source updated 3 Oct 2026
Alpine v3.21v3.21 · mainp11-kitVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.0.26.2-r0Alpine Security Database ↗Source updated 3 Oct 2026
Debian trixietrixie · sourcep11-kitNot affectedDebian marks this release not affected (fixed-version marker 0).Not published in this feedDebian Security Tracker ↗Source updated 6 Oct 2026
Debian bookwormbookworm · sourcep11-kitNot affectedDebian marks this release not affected (fixed-version marker 0).Not published in this feedDebian Security Tracker ↗Source updated 6 Oct 2026
Debian forkyforky · sourcep11-kitVendor fix publishedDebian records a fixed source-package version for this release.0.26.2-2Debian Security Tracker ↗Source updated 6 Oct 2026
Debian sidsid · sourcep11-kitVendor fix publishedDebian records a fixed source-package version for this release.0.26.2-2Debian Security Tracker ↗Source updated 6 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-2026-2100 · CSAF 2.0 · revision 14 · interimSUSE Product Security TeamCVE-2026-2100
318 known not affected

The vendor explicitly states that these products are not affected by this CVE.

  • libp11-kit0 as component of SUSE Linux Enterprise Desktop 15 SP7
  • libp11-kit0-32bit as component of SUSE Linux Enterprise Desktop 15 SP7
  • p11-kit as component of SUSE Linux Enterprise Desktop 15 SP7
  • p11-kit-devel as component of SUSE Linux Enterprise Desktop 15 SP7
  • p11-kit-nss-trust as component of SUSE Linux Enterprise Desktop 15 SP7
  • p11-kit-server as component of SUSE Linux Enterprise Desktop 15 SP7
  • p11-kit-tools as component of SUSE Linux Enterprise Desktop 15 SP7
  • libp11-kit0 as component of SUSE Linux Enterprise High Performance Computing 12 SP2
  • libp11-kit0-32bit as component of SUSE Linux Enterprise High Performance Computing 12 SP2
  • p11-kit as component of SUSE Linux Enterprise High Performance Computing 12 SP2
  • p11-kit-32bit as component of SUSE Linux Enterprise High Performance Computing 12 SP2
  • p11-kit-nss-trust as component of SUSE Linux Enterprise High Performance Computing 12 SP2
Summary
A flaw was found in p11-kit. A remote attacker could exploit this vulnerability by calling the C_DeriveKey function on a remote token with specific IBM kyber or IBM btc derive mechanism parameters set to NULL. This could lead to the RPC-client attempting to return an uninitialized value, potentially resulting in a NULL dereference or undefined behavior. This issue may cause an application level denial of service or other unpredictable system states.
Remediation
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
CVE-2026-2100 · CSAF 2.0 · revision 3 · finalRed Hat Product Securityp11-kit: NULL dereference via C_DeriveKey with specific NULL parameters
1 under investigation

The vendor has not yet reached a final affected or unaffected determination for these products.

  • openshift4/ose-hypershift-rhel9 as a component of Red Hat OpenShift Container Platform 4
Summary
A flaw was found in p11-kit. A remote attacker could exploit this vulnerability by calling the C_DeriveKey function on a remote token with specific IBM kyber or IBM btc derive mechanism parameters set to NULL. This could lead to the RPC-client attempting to return an uninitialized value, potentially resulting in a NULL dereference or undefined behavior. This issue may cause an application level denial of service or other unpredictable system states.
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-2026-16336

No EUVD known-exploited evidence

A flaw was found in p11-kit. A remote attacker could exploit this vulnerability by calling the C_DeriveKey function on a remote token with specific IBM kyber or IBM btc derive mechanism parameters set to NULL. This could lead to the RPC-client attempting to return an uninitialized value, potentially resulting in a NULL dereference or undefined behavior. This issue may cause an application level denial of service or other unpredictable system states.

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
5.3 · 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 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

A flaw was found in p11-kit. A remote attacker could exploit this vulnerability by calling the C_DeriveKey function on a remote token with specific IBM kyber or IBM btc derive mechanism parameters set to NULL. This could lead to the RPC-client attempting to return an uninitialized value, potentially resulting in a NULL dereference or undefined behavior. This issue may cause an application level denial of service or other unpredictable system states.

What

A flaw was found in p11-kit. A remote attacker could exploit this vulnerability by calling the C_DeriveKey function on a remote token with specific IBM kyber or IBM btc derive mechanism parameters set to NULL. This could lead to the RPC-client attempting to return an uninitialized value, potentially resulting in a NULL dereference or undefined behavior. This issue may cause an application level denial of service or other unpredictable system states.

Why

The product accesses or uses a pointer that has not been initialized.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.

What

A flaw was found in p11-kit. A remote attacker could exploit this vulnerability by calling the C_DeriveKey function on a remote token with specific IBM kyber or IBM btc derive mechanism parameters set to NULL. This could lead to the RPC-client attempting to return an uninitialized value, potentially resulting in a NULL dereference or undefined behavior. This issue may cause an application level denial of service or other unpredictable system states.

Why

The product accesses or uses a pointer that has not been initialized.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.

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 → Access of Uninitialized Pointer → disrupt the affected service
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
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-824 ↗

CWE-824: Access of Uninitialized Pointer. The product accesses or uses a pointer that has not been initialized.

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

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

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.ALowAvailability impact: A successful attack can cause a limited loss.
Post-exploitation / living off the land
Stolen credentials, tokens and legitimate administration functions may provide continued access without deploying a large custom toolset.
NetworkUnauthenticatedDenial of serviceCWE-824
A

Official authority intelligence

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

ENISA EUVD · EUVD-2026-16336Official EUVD mapping

A flaw was found in p11-kit. A remote attacker could exploit this vulnerability by calling the C_DeriveKey function on a remote token with specific IBM kyber or IBM btc derive mechanism parameters set to NULL. This could lead to the RPC-client attempting to return an uninitialized value, potentially resulting in a NULL dereference or undefined behavior. This issue may cause an application level denial of service or other unpredictable system states.

Official EUVD record ↗
BSI · German · WID-SEC-2026-3623IBM DataPower Gateway: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in IBM DataPower Gateway ausnutzen, um beliebigen Programmcode auszuführen, erweiterte Berechtigungen zu erlangen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren oder offenzulegen, einen Denial-of-Service-Zustand auszulösen oder Cross-Site-Scripting-Angriffe durchzuführen.

Official advisory ↗
BSI · German · WID-SEC-2026-1267Red Hat Hardened Images RPMs: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Red Hat Hardened Images RPMs ausnutzen, um Sicherheitsvorkehrungen zu umgehen, Rechte zu erweitern, vertrauliche Informationen offenzulegen, Daten zu manipulieren oder einen Denial-of-Service-Zustand zu verursachen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260401Security Bulletin 01 Apr 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 01 Apr 2026, published on 1 April 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0266Multiples vulnérabilités dans VMware Tanzu

.cve.org/CVERecord?id=CVE-2026-0915 Référence CVE CVE-2026-0988 https://www.cve.org/CVERecord?id=CVE-2026-0988 Référence CVE CVE-2026-0989 https://www.cve.org/CVERecord?id=CVE-2026-0989 Référence CVE CVE-2026-0990 https://www.cve.org/CVERecord?id=CVE-2026-0990 Référence CVE CVE-2026-0992 https://www.cve.org/CVERecord?id=CVE-2026-0992 Référence CVE CVE-2026-1484 https://www.cve.org/CVERecord?id=CVE-2026-1484 Référence CVE CVE-2026-1485 https://www.cve.org/CVERecord?id=CVE-2026-1485 Référence CVE CVE-2026-1489 https://www.cve.org/CVERecord?id=CVE-2026-1489 Référence CVE CVE-2026-1757 https://www.cve.org/CVERecord?id=CVE-2026-1757 Référence CVE CVE-2026-2100 https://www.cve.org/CVERecord?id=CVE-2026-2100 Référence CVE CVE-2026-22185 https://www.cve.org/CVERecord?id=CVE-2026-22185 Référence CVE CVE-2026-24883 https://www.cve.org/CVERecord?id=CVE-2026-24883 Référence CVE CVE-2026-26960 https://www.cve.org/CVERecord?id=CVE-2026-26960 Référence CVE CVE-2026-27171 https://www.cve.org/CVERecord?id=CVE-2026-27171 Gestion détaillée du document le 11 mars 2026 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr france.fr info.gouv.fr/risques Premier Ministre / Secrétariat Général de la

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-012166p11-kit project等の複数ベンダの製品における初期化されていないポインタのアクセスに関する脆弱性

p11-kitに脆弱性が発見されました。リモート攻撃者は、特定のIBM kyberまたはIBM btc派生メカニズムパラメータがNULLに設定されたリモートトークン上でC_DeriveKey関数を呼び出すことで、この脆弱性を悪用できます。これにより、RPCクライアントが初期化されていない値を返そうとし、NULL参照または未定義動作が発生する可能性があります。この問題は、アプリケーションレベルでのサービス拒否やその他の予測不能なシステム状態を引き起こす可能性があります。

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 26 Mar 2026 · Last source change 29 Sept 2026, 00:20 UTC · CWE-824 · Access of Uninitialized Pointer

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-2026-16336
Product sourceCNA
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. Affected versionsThe structured affected or fixed version information changed.
    Before
    p11-kit: < 0.26.2 · Fixed: Red Hat Enterprise Linux 10: 0:0.26.2-1.el10 < *; Red Hat Enterprise Linux 9: 0:0.26.2-1.el9 < *; Cost Management 4: 1780946239 < *; Red Hat Hardened Images: 0.26.2-1.1.hum1 < *; Red Hat Insights proxy 1.5: 1780420428 < *; Red Hat Update Infrastructure 5: 1779798159 < *, 1779798164 < *, 1779798165 < *, 1779798222 < *, 1787241211 < *, 1787135742 < *, 1787241260 < *
    After
    p11-kit: < 0.26.2 · Fixed: Red Hat Enterprise Linux 10: 0:0.26.2-1.el10 < *; Red Hat Enterprise Linux 9: 0:0.26.2-1.el9 < *; Cert Manager support for Red Hat OpenShift release 1.20: 1790598593 < *; Cost Management 4: 1780946239 < *; Red Hat Hardened Images: 0.26.2-1.1.hum1 < *; Red Hat Insights proxy 1.5: 1780420428 < *; Red Hat Update Infrastructure 5: 1779798159 < *, 1779798164 < *, 1779798165 < *, 1779798222 < *, 1787241211 < *, 1787135742 < *, 1787241260 < *
    CNA ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    Fixed: p11-kit-client-debuginfo-0:0.26.2-1.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-client-debuginfo-0:0.26.2-1.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-client-debuginfo-0:0.26.2-1.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-client-debuginfo-0:0.26.2-1.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debuginfo-0:0.26.2-1.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debuginfo-0:0.26.2-1.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debuginfo-0:0.26.2-1.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debuginfo-0:0.26.2-1.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debugsource-0:0.26.2-1.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debugsource-0:0.26.2-1.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debugsource-0:0.26.2-1.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debugsource-0:0.26.2-1.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-devel-0:0.26.2-1.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-devel-0:0.26.2-1.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-devel-0:0.26.2-1.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-devel-0:0.26.2-1.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-0:0.26.2-1.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-0:0.26.2-1.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-0:0.26.2-1.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-0:0.26.2-1.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-debuginfo-0:0.26.2-1.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-debuginfo-0:0.26.2-1.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-debuginfo-0:0.26.2-1.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-debuginfo-0:0.26.2-1.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-trust-debuginfo-0:0.26.2-1.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-trust-debuginfo-0:0.26.2-1.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-trust-debuginfo-0:0.26.2-1.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-trust-debuginfo-0:0.26.2-1.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-client-debuginfo-0:0.26.2-1.el9.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); p11-kit-client-debuginfo-0:0.26.2-1.el9.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9); and 122 more
    After
    Fixed: p11-kit-client-debuginfo-0:0.26.2-1.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-client-debuginfo-0:0.26.2-1.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-client-debuginfo-0:0.26.2-1.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-client-debuginfo-0:0.26.2-1.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debuginfo-0:0.26.2-1.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debuginfo-0:0.26.2-1.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debuginfo-0:0.26.2-1.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debuginfo-0:0.26.2-1.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debugsource-0:0.26.2-1.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debugsource-0:0.26.2-1.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debugsource-0:0.26.2-1.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debugsource-0:0.26.2-1.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-devel-0:0.26.2-1.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-devel-0:0.26.2-1.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-devel-0:0.26.2-1.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-devel-0:0.26.2-1.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-0:0.26.2-1.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-0:0.26.2-1.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-0:0.26.2-1.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-0:0.26.2-1.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-debuginfo-0:0.26.2-1.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-debuginfo-0:0.26.2-1.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-debuginfo-0:0.26.2-1.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-debuginfo-0:0.26.2-1.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-trust-debuginfo-0:0.26.2-1.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-trust-debuginfo-0:0.26.2-1.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-trust-debuginfo-0:0.26.2-1.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-trust-debuginfo-0:0.26.2-1.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-client-debuginfo-0:0.26.2-1.el9.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); p11-kit-client-debuginfo-0:0.26.2-1.el9.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9); and 126 more
    Red Hat Product Security ↗
  3. Affected versionsThe structured affected or fixed version information changed.
    Before
    p11-kit: < 0.26.2 · Fixed: Red Hat Enterprise Linux 10: 0:0.26.2-1.el10 < *; Red Hat Enterprise Linux 9: 0:0.26.2-1.el9 < *; Cost Management Metrics Operator 4: 1780946239 < *; Red Hat Hardened Images: 0.26.2-1.1.hum1 < *; Red Hat Insights proxy 1.5: 1780420428 < *; Red Hat Update Infrastructure 5: 1779798159 < *, 1779798164 < *, 1779798165 < *, 1779798222 < *, 1787241211 < *, 1787135742 < *, 1787241260 < *
    After
    p11-kit: < 0.26.2 · Fixed: Red Hat Enterprise Linux 10: 0:0.26.2-1.el10 < *; Red Hat Enterprise Linux 9: 0:0.26.2-1.el9 < *; Cost Management 4: 1780946239 < *; Red Hat Hardened Images: 0.26.2-1.1.hum1 < *; Red Hat Insights proxy 1.5: 1780420428 < *; Red Hat Update Infrastructure 5: 1779798159 < *, 1779798164 < *, 1779798165 < *, 1779798222 < *, 1787241211 < *, 1787135742 < *, 1787241260 < *
    CNA ↗
  4. Affected versionsThe structured affected or fixed version information changed.
    Before
    < 0.26.2 · Fixed: 0:0.26.2-1.el10 < *; 0:0.26.2-1.el9 < *; 1780946239 < *; 0.26.2-1.1.hum1 < *; 1780420428 < *; 1779798159 < *
    After
    p11-kit: < 0.26.2 · Fixed: Red Hat Enterprise Linux 10: 0:0.26.2-1.el10 < *; Red Hat Enterprise Linux 9: 0:0.26.2-1.el9 < *; Cost Management Metrics Operator 4: 1780946239 < *; Red Hat Hardened Images: 0.26.2-1.1.hum1 < *; Red Hat Insights proxy 1.5: 1780420428 < *; Red Hat Update Infrastructure 5: 1779798159 < *, 1779798164 < *, 1779798165 < *, 1779798222 < *, 1787241211 < *, 1787135742 < *, 1787241260 < *
    CNA ↗
  5. Vendor guidanceAuthoritative vendor guidance changed: removed vendor advisory: access.redhat.com/RHSA-2026:58981.
    Before
    patch: github.com/740 · remediation: github.com/740 · vendor advisory: access.redhat.com/CVE-2026-2100 · 2 more references
    After
    patch: github.com/740 · remediation: github.com/740 · vendor advisory: access.redhat.com/CVE-2026-2100 · 1 more references
    secalert@redhat.com ↗
  6. Vendor guidanceAuthoritative vendor guidance changed: added vendor advisory: access.redhat.com/RHSA-2026:58981.
    Before
    patch: github.com/740 · remediation: github.com/740 · vendor advisory: access.redhat.com/CVE-2026-2100 · 1 more references
    After
    patch: github.com/740 · remediation: github.com/740 · vendor advisory: access.redhat.com/CVE-2026-2100 · 2 more references
    github.com ↗
  7. Affected versionsThe structured affected or fixed version information changed.
    Before
    Fixed: p11-kit-client-debuginfo-0:0.26.2-1.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-client-debuginfo-0:0.26.2-1.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-client-debuginfo-0:0.26.2-1.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-client-debuginfo-0:0.26.2-1.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debuginfo-0:0.26.2-1.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debuginfo-0:0.26.2-1.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debuginfo-0:0.26.2-1.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debuginfo-0:0.26.2-1.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debugsource-0:0.26.2-1.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debugsource-0:0.26.2-1.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debugsource-0:0.26.2-1.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debugsource-0:0.26.2-1.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-devel-0:0.26.2-1.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-devel-0:0.26.2-1.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-devel-0:0.26.2-1.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-devel-0:0.26.2-1.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-0:0.26.2-1.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-0:0.26.2-1.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-0:0.26.2-1.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-0:0.26.2-1.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-debuginfo-0:0.26.2-1.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-debuginfo-0:0.26.2-1.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-debuginfo-0:0.26.2-1.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-debuginfo-0:0.26.2-1.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-trust-debuginfo-0:0.26.2-1.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-trust-debuginfo-0:0.26.2-1.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-trust-debuginfo-0:0.26.2-1.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-trust-debuginfo-0:0.26.2-1.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-client-debuginfo-0:0.26.2-1.el9.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); p11-kit-client-debuginfo-0:0.26.2-1.el9.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9); and 119 more
    After
    Fixed: p11-kit-client-debuginfo-0:0.26.2-1.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-client-debuginfo-0:0.26.2-1.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-client-debuginfo-0:0.26.2-1.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-client-debuginfo-0:0.26.2-1.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debuginfo-0:0.26.2-1.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debuginfo-0:0.26.2-1.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debuginfo-0:0.26.2-1.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debuginfo-0:0.26.2-1.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debugsource-0:0.26.2-1.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debugsource-0:0.26.2-1.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debugsource-0:0.26.2-1.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-debugsource-0:0.26.2-1.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-devel-0:0.26.2-1.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-devel-0:0.26.2-1.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-devel-0:0.26.2-1.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-devel-0:0.26.2-1.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-0:0.26.2-1.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-0:0.26.2-1.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-0:0.26.2-1.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-0:0.26.2-1.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-debuginfo-0:0.26.2-1.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-debuginfo-0:0.26.2-1.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-debuginfo-0:0.26.2-1.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-server-debuginfo-0:0.26.2-1.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-trust-debuginfo-0:0.26.2-1.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-trust-debuginfo-0:0.26.2-1.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-trust-debuginfo-0:0.26.2-1.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-trust-debuginfo-0:0.26.2-1.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); p11-kit-client-debuginfo-0:0.26.2-1.el9.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); p11-kit-client-debuginfo-0:0.26.2-1.el9.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9); and 122 more
    Red Hat Product Security ↗
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-2026-16336↗Vendor CSAF · SUSE Product Security Team↗Vendor advisory↗Vendor advisory↗Patch or update reference↗CVE authority or vendor reference · Red Hat RHSA-2026:18143↗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-2026-2100 · cve.blacktree.nl