PT-2026-20367 · Unknown+1 · Libp11-Kit+1

Zoltan Fridrich · CVE-2026-2100 · Published 2026-01-01 · Updated 2026-07-19

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions libp11-kit versions prior to 0.26.2-1.1

Description The software contains a NULL dereference issue occurring via the C DeriveKey function when provided with specific NULL parameters.

Recommendations Update to libp11-kit version 0.26.2-1.1 or later.

Exploit

Fix

DoS

Access of Uninitialized Pointer

Weakness Enumeration

CWE-824

Related Identifiers

ALSA-2026:18143

ALSA-2026:18599

CVE-2026-2100

ECHO-7889-82B6-071E

OPENSUSE-SU-2026:10169-1

RHSA-2026:18143

RHSA-2026:18599

RHSA-2026:7065

Affected Products

Rocky Linux

Libp11-Kit

References · 39

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/2xxx/CVE-2026-2100.json · Exploit
• https://github.com/p11-glue/p11-kit/pull/740 · Patch
• https://osv.dev/vulnerability/ALSA-2026:18143 · Vendor Advisory
• https://osv.dev/vulnerability/ALPINE-CVE-2026-2100 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-2100 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2026:18143 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-2100 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-2100 · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2026:18599 · Vendor Advisory
• https://errata.almalinux.org/9/ALSA-2026-18599.html · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2026:7065 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-2100 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2026-18599.html · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-2100 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-2100 · Security Note