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.

This MODERATE impact flaw in p11-kit allows a remote attacker to cause an application level denial of service or unpredictable system states. Exploitation occurs when the C_DeriveKey function is called on a remote token with specific IBM kyber or IBM btc derive mechanism parameters set to NULL. This affects Red Hat Enterprise Linux 9.8 and 10.2, Fedora 42 and 43, and Red Hat In-Vehicle OS 2.0. Other Red Hat products, including OpenShift Container Platform and various RHEL versions, are not affected as the vulnerable code is not present.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.