CVE-2026-116497 Gssproxy: gssproxy: null pointer dereference in gssx_init_sec_context crashes daemon
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-116497?
CVE-2026-116497 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, published on 26 Oct 2026.
Official description
A NULL pointer dereference vulnerability was found in gssproxy. When a GSSX_INIT_SEC_CONTEXT request is received with the target_name field absent, the daemon dereferences the resulting NULL pointer and crashes. The request requires no authentication, allowing any local user to crash the gssproxy daemon via its Unix socket. The daemon does not automatically restart, resulting in a persistent denial of service that also affects dependent services such as Kerberized NFS and IdM.
Weakness: CWE-476
Which versions are affected by CVE-2026-116497?
How do I fix CVE-2026-116497?
No fix has been published for CVE-2026-116497 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-116497 being exploited?
There is no known exploitation of CVE-2026-116497 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-116497, GHSA-9crw-qhvr-v43j, UBUNTU-CVE-2026-116497.