CVE-2026-116497

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.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-116497
https://bugzilla.redhat.com/show_bug.cgi?id=2560642

Configurations

No configuration.

History

26 Oct 2026, 15:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-26 15:16

Updated : 2026-10-26 18:17

NVD link : CVE-2026-116497

Mitre link : CVE-2026-116497

CVE.ORG link : CVE-2026-116497

JSON object : View

Products Affected

No product.

CWE

CWE-476

NULL Pointer Dereference

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