CVE-2026-2100: p11-Kit Project p11-Kit

High severity, CVSS 7.5. EPSS: 1.2% chance of exploitation in the next 30 days.

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.

Affected products

• p11-Kit Project p11-Kit: affected versions not specified
• Red Hat Enterprise Linux: version 9.0 only; version 10.0 only
• Red Hat Hardened Images: affected versions not specified

Published 2026-03-26. Last modified 2026-09-29.