CVE record · CVE-2026-2100

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

CVSS 5.3 MediumEPSS 0.013 · 70th percentile

Published by the CVE Program (CNA: redhat) at 26 Mar 2026, 20:01 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
p11-glue	p11-kit	affected before 0.26.2 semver Other versions: unaffected
Red Hat	Red Hat Enterprise Linux 10 Package name: p11-kit https://access.redhat.com/downloads/content/package-browser/	unaffected 0:0.26.2-1.el10 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9 Package name: p11-kit https://access.redhat.com/downloads/content/package-browser/	unaffected 0:0.26.2-1.el9 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9 Package name: p11-kit https://access.redhat.com/downloads/content/package-browser/	unaffected 0:0.26.2-1.el9 to before * rpm Other versions: affected
Red Hat	Cert Manager support for Red Hat OpenShift release 1.17 Package name: cert-manager/jetstack-cert-manager-acmesolver-rhel9 https://catalog.redhat.com/software/containers/	unaffected 1791371080 to before * rpm Other versions: affected
Red Hat	Cert Manager support for Red Hat OpenShift release 1.17 Package name: cert-manager/jetstack-cert-manager-rhel9 https://catalog.redhat.com/software/containers/	unaffected 1791371069 to before * rpm Other versions: affected
Red Hat	Cert Manager support for Red Hat OpenShift release 1.17 Package name: cert-manager/cert-manager-operator-rhel9 https://catalog.redhat.com/software/containers/	unaffected 1791788287 to before * rpm Other versions: affected
Red Hat	Cert Manager support for Red Hat OpenShift release 1.17 Package name: cert-manager/cert-manager-operator-bundle https://catalog.redhat.com/software/containers/	unaffected 1791970484 to before * rpm Other versions: affected
Red Hat	Cert Manager support for Red Hat OpenShift release 1.18 Package name: cert-manager/jetstack-cert-manager-acmesolver-rhel9 https://catalog.redhat.com/software/containers/	unaffected 1791459707 to before * rpm Other versions: affected
Red Hat	Cert Manager support for Red Hat OpenShift release 1.18 Package name: cert-manager/jetstack-cert-manager-rhel9 https://catalog.redhat.com/software/containers/	unaffected 1791459711 to before * rpm Other versions: affected
Red Hat	Cert Manager support for Red Hat OpenShift release 1.18 Package name: cert-manager/cert-manager-istio-csr-rhel9 https://catalog.redhat.com/software/containers/	unaffected 1791459759 to before * rpm Other versions: affected
Red Hat	Cert Manager support for Red Hat OpenShift release 1.18 Package name: cert-manager/cert-manager-operator-rhel9 https://catalog.redhat.com/software/containers/	unaffected 1789029076 to before * rpm Other versions: affected
Red Hat	Cert Manager support for Red Hat OpenShift release 1.18 Package name: cert-manager/cert-manager-operator-bundle https://catalog.redhat.com/software/containers/	unaffected 1791966259 to before * rpm Other versions: affected
Red Hat	Cert Manager support for Red Hat OpenShift release 1.20 Package name: cert-manager/cert-manager-trust-manager-rhel9 https://catalog.redhat.com/software/containers/	unaffected 1790598593 to before * rpm Other versions: affected
Red Hat	Cost Management 4 Package name: costmanagement/costmanagement-metrics-rhel9-operator https://catalog.redhat.com/software/containers/	unaffected 1780946239 to before * rpm Other versions: affected
Red Hat	Red Hat Hardened Images Package name: p11-kit-main https://catalog.redhat.com/software/containers/	unaffected 0.26.2-1.1.hum1 to before * rpm Other versions: affected
Red Hat	Red Hat Insights proxy 1.5 Package name: insights-proxy/insights-proxy-container-rhel9 https://catalog.redhat.com/software/containers/	unaffected 1780420428 to before * rpm Other versions: affected
Red Hat	Red Hat Update Infrastructure 5 Package name: rhui5/cds-rhel9 https://catalog.redhat.com/software/containers/	unaffected 1779798159 to before * rpm Other versions: affected
Red Hat	Red Hat Update Infrastructure 5 Package name: rhui5/haproxy-rhel9 https://catalog.redhat.com/software/containers/	unaffected 1779798164 to before * rpm Other versions: affected
Red Hat	Red Hat Update Infrastructure 5 Package name: rhui5/installer-rhel9 https://catalog.redhat.com/software/containers/	unaffected 1779798165 to before * rpm Other versions: affected
Red Hat	Red Hat Update Infrastructure 5 Package name: rhui5/rhua-rhel9 https://catalog.redhat.com/software/containers/	unaffected 1779798222 to before * rpm Other versions: affected
Red Hat	Red Hat Update Infrastructure 5 Package name: rhui5/cds-kubernetes-tp-rhel9 https://catalog.redhat.com/software/containers/	unaffected 1787241211 to before * rpm Other versions: affected
Red Hat	Red Hat Update Infrastructure 5 Package name: rhui5/installer-tp-rhel9 https://catalog.redhat.com/software/containers/	unaffected 1787135742 to before * rpm Other versions: affected
Red Hat	Red Hat Update Infrastructure 5 Package name: rhui5/rhua-tp-rhel9 https://catalog.redhat.com/software/containers/	unaffected 1787241260 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 6 Package name: p11-kit https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat Enterprise Linux 7 Package name: p11-kit https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat Enterprise Linux 8 Package name: p11-kit https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat OpenShift Container Platform 4 Package name: openshift4/ose-hypershift-rhel9 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unknown
Red Hat	Red Hat OpenShift Container Platform 4 Package name: openshift/ose-rhel-coreos-8 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat OpenShift Container Platform 4 Package name: openshift/ose-rhel-coreos-9 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected

Identifiers: CVE-2026-2100
CNA: redhat
Weakness (CWE): CWE-824
Tags: p11-glue p11-kit
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 9
Cert Manager support for Red Hat OpenShift release 1.17
Cert Manager support for Red Hat OpenShift release 1.18
Cert Manager support for Red Hat OpenShift release 1.20
Red Hat Cost Management 4
Red Hat Hardened Images
Memory corruption
Published: 26 Mar 2026
Updated: 5 Nov 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
5.3	Medium	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L	CNA (redhat)

CISA KEV Not listed.
EPSS 0.013, the 70th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

26 Mar 2026, 20:01 UTC Confirmed by the CVE List
26 Mar 2026, 21:17 UTC Confirmed by NVD

Sources

References from the CNA

access.redhat.com/errata/RHSA-2026:18143 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:18599 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:21275 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:22634 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:27998 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:58981 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:7065 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:72502 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:82304 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:82322 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:82347 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:82354 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:82372 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:82857 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:82888 vendor-advisoryredhat
access.redhat.com/security/cve/CVE-2026-2100 vdb-entryredhat
bugzilla.redhat.com/show_bug.cgi?id=2437308 issue-trackingredhat
github.com/p11-glue/p11-kit/pull/740
github.com/p11-glue/p11-kit/releases/tag/0.26.2

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.