CVE-2026-2100

Medium

Description

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.

SeverityMedium

CVSS5.3

Exploit probability—

Product

P11-kit

PublishedMar 26, 2026

First seenMar 26, 2026

Weakness typeCWE-824CWE-824

How to fix

Update

p11-kit_project p11-kit0.26.2 or later
redhat cert-manager_operator1.17.2, 1.18.2, 1.20.1 or later
redhat cost_management_metrics_operator4.4.1 or later

Vendor advisories

Affected products

Product	Affected versions	Fixed in
p11-kit_project p11-kit	No range specified, v < 0.26.2	0.26.2
redhat hardened_images	No range specified	—
redhat enterprise_linux	9.0, 10.0, 6.0, 7.0, 8.0	—
redhat cert-manager_operator	1.17.0 ≤ v < 1.17.2, 1.18.0 ≤ v < 1.18.2, 1.20.0 ≤ v < 1.20.1	1.17.2, 1.18.2, 1.20.1
redhat cost_management_metrics_operator	4.0.0 ≤ v < 4.4.1	4.4.1
redhat insights-proxy	1.5.0	—
redhat update_infrastructure	5.0	—

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