Vulnerability in P11-Glue P11-Kit
CVE-2026-2100
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.012 (65.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 65.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- P11-Glue P11-Kit — versions 0
- P11-Kit Project
- Red Hat Cost Management 4 — versions 1780946239
- Red Hat Cost Management Metrics Operator 4 — versions 1780946239
- Red Hat Enterprise Linux 10 — versions 0:0.26.2-1.el10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9 — versions 0:0.26.2-1.el9
- Red Hat Hardened Images — versions 0.26.2-1.1.hum1
Weakness classification (CWE)
References
- access.redhat.com/errata/RHSA-2026:7065 (vendor-advisory)
- access.redhat.com/security/cve/CVE-2026-2100 (vdb-entry, Vendor Advisory)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking, Issue Tracking, Vendor Advisory)
- github.com/p11-glue/p11-kit/pull/740 (Patch, Issue Tracking)
- access.redhat.com/errata/RHSA-2026:18143 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:18599 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:21275 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:22634 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:27998 (vendor-advisory)
- github.com/p11-glue/p11-kit/releases/tag/0.26.2
Frequently asked questions
- What is CVE-2026-2100?
- CVE-2026-2100 is a medium-severity vulnerability in P11-Glue P11-Kit, classified under Access of Uninitialized Pointer. CVSS score: 5.3/10. Published 2026-03-26.
- How severe is CVE-2026-2100?
- Medium severity. CVSS v3 base score is 5.3 out of 10.