CVE-2026-2100

p11-kit: A flaw was found in p11-kit

CVE-2026-2100 is fixed in 5 products on 1 platform, first by RHSA-2026:18143, released February 6, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.5
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0131
70th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
p11-kit · Debian 14 0.26.2-2 DEBIAN-CVE-2026-2100 Mar 26, 2026
p11-kit · RHEL 10 0.26.2-1.el10 RHSA-2026:18143 Feb 6, 2026
p11-kit · RHEL 9 0:0.26.2-1.el9 RHSA-2026:18599 May 27, 2026
p11-kit · almalinux 10 0.26.2-1.el10 ALSA-2026:18143 May 19, 2026
p11-kit · almalinux 9 0.26.2-1.el9 ALSA-2026:18599 May 19, 2026
p11-kit · ol 10 0:0.26.2-1.el10 ELSA-2026-18143 Jul 8, 2026
p11-kit · ol 9 0:0.26.2-1.el9 ELSA-2026-18599 Jun 12, 2026
p11-kit · rocky 10 0:0.26.2-1.el10 RLSA-2026:18143 May 29, 2026
p11-kit · rocky 9 0:0.26.2-1.el9 RLSA-2026:18599 May 28, 2026
p11-kit-client · RHEL 9 0:0.26.2-1.el9 RHSA-2026:18599 May 27, 2026
p11-kit-client · almalinux 10 0.26.2-1.el10 ALSA-2026:18143 May 19, 2026
p11-kit-client · almalinux 9 0.26.2-1.el9 ALSA-2026:18599 May 19, 2026
p11-kit-client · ol 10 0:0.26.2-1.el10 ELSA-2026-18143 Jul 8, 2026
p11-kit-client · ol 9 0:0.26.2-1.el9 ELSA-2026-18599 Jun 12, 2026
p11-kit-devel · RHEL 9 0:0.26.2-1.el9 RHSA-2026:18599 May 27, 2026
p11-kit-devel · almalinux 10 0.26.2-1.el10 ALSA-2026:18143 May 19, 2026
p11-kit-devel · almalinux 9 0.26.2-1.el9 ALSA-2026:18599 May 19, 2026
p11-kit-devel · ol 10 0:0.26.2-1.el10 ELSA-2026-18143 Jul 8, 2026
p11-kit-devel · ol 9 0:0.26.2-1.el9 ELSA-2026-18599 Jun 12, 2026
p11-kit-server · RHEL 9 0:0.26.2-1.el9 RHSA-2026:18599 May 27, 2026
p11-kit-server · almalinux 10 0.26.2-1.el10 ALSA-2026:18143 May 19, 2026
p11-kit-server · almalinux 9 0.26.2-1.el9 ALSA-2026:18599 May 19, 2026
p11-kit-server · ol 10 0:0.26.2-1.el10 ELSA-2026-18143 Jul 8, 2026
p11-kit-server · ol 9 0:0.26.2-1.el9 ELSA-2026-18599 Jun 12, 2026
p11-kit-trust · RHEL 9 0:0.26.2-1.el9 RHSA-2026:18599 May 27, 2026
p11-kit-trust · almalinux 10 0.26.2-1.el10 ALSA-2026:18143 May 19, 2026
p11-kit-trust · almalinux 9 0.26.2-1.el9 ALSA-2026:18599 May 19, 2026
p11-kit-trust · ol 10 0:0.26.2-1.el10 ELSA-2026-18143 Jul 8, 2026
p11-kit-trust · ol 9 0:0.26.2-1.el9 ELSA-2026-18599 Jun 12, 2026

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