NULL pointer dereference in p11-kit - CVE-2026-2100
Published: September 11, 2026
Vulnerability identifier: #VU148982
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-2100
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a null pointer dereference in the rpc component when C_DeriveKey is invoked with specific NULL parameters. A local user can invoke C_DeriveKey with specific NULL parameters to cause a denial of service.
Affected software
p11-kit
Fedora
p11-kit
Fedora
p11-kit
How to mitigate CVE-2026-2100
Install security update from vendor's website.
p11-kit - update to 0.26.2
p11-kit - addressed in versions 0.26.2-1.fc42, 0.26.2-1.fc43
p11-kit - addressed in versions 0.26.2-1.fc42, 0.26.2-1.fc43