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.
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
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| 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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