Access of Uninitialized Pointer Affecting p11-kit package, versions <0:0.26.2-1.el10


Severity

Recommended
medium

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
1.31% (71st percentile)

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  • Snyk IDSNYK-ALMALINUX10-P11KIT-16888128
  • published27 May 2026
  • disclosed19 May 2026

Introduced: 19 May 2026

CVE-2026-2100  (opens in a new tab)
CWE-824  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:10 p11-kit to version 0:0.26.2-1.el10 or higher.
This issue was patched in ALSA-2026:18143.

NVD Description

Note: Versions mentioned in the description apply only to the upstream p11-kit package and not the p11-kit package as distributed by AlmaLinux. See How to fix? for AlmaLinux:10 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1