CVE-2026-2100P11-kit: null dereference via c_derivekey with specific null parameters
Updated under an hour ago ()
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It affects p11-glue p11-kit and 9 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Weakness (CWE)
- CWE-824
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Modified
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
p11-glue p11-kit p11_glue:p11_kit (from the name) | before 0.26.2 | CNA record |
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux | from 0:0.26.2-1.el10 not affected | CNA record |
Red Hat Cert Manager support for Red Hat OpenShift release 1.17 redhat:cert_manager | from 1791371080 not affected | CNA record |
Red Hat Cost Management 4 redhat:cost_management | from 1780946239 not affected | CNA record |
Red Hat Red Hat Hardened Images redhat:hummingbird | from 0.26.2-1.1.hum1 not affected | CNA record |
Red Hat Red Hat Insights proxy 1.5 redhat:insights_proxy | from 1780420428 not affected | CNA record |
Red Hat Red Hat Update Infrastructure 5 redhat:rhui | from 1779798159 not affected | CNA record |
Red Hat Red Hat OpenShift Container Platform 4 redhat:openshift | 4 | CNA record |
p11-kit_project p11-kit p11-kit_project:p11-kit | all versions | NVD |
redhat hardened_images redhat:hardened_images | all versions | NVD |
redhat enterprise_linux redhat:enterprise_linux | 9.0; 10.0 | NVD |
References
- https://access.redhat.com/errata/RHSA-2026:18143vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:18599vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:21275vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:22634vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:27998vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:58981vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:7065vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:72502vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:82304vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:82322vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:82347vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:82354vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:82372vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:82857vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:82888vendor-advisory, x-refsource-redhat
- https://access.redhat.com/security/cve/CVE-2026-2100vdb-entry, x-refsource-redhat, vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2437308issue-tracking, x-refsource-redhat, vendor-advisory
- https://github.com/p11-glue/p11-kit/pull/740issue-tracking, patch
- https://github.com/p11-glue/p11-kit/releases/tag/0.26.2
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.