CVE-2026-2100 MEDIUM

CVE-2026-2100: P11-kit: null dereference via c_derivekey with specific null parameters

Vendor Red Hat
Product Red Hat Enterprise Linux 6
Weakness CWE-824
Published March 26, 2026
Last update June 2, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 26, 2026 CVE published
June 2, 2026 Record updated