Medium 5.3Published Mar 26, 2026

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

Updated under an hour ago (Oct 27, 2026, 5:23 PM ET)

Does this affect you?

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.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for p11-glue p11-kit

Exploited in the last 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.

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

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
1–10 of 11

References

References

https://access.redhat.com/errata/RHSA-2026:18143	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:18599	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:21275	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:22634	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:27998	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:58981	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:7065	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:72502	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:82304	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:82322	vendor-advisory, x-refsource-redhat
1–10 of 19

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.