OpenSSH GSSAPI Authentication Flaw Exposes Unauthorized Access Risks
CVE-2026-110924

4.8MEDIUM

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Vendor
CVE Published:
15 October 2026

What is CVE-2026-110924?

A security flaw within OpenSSH occurs when GSSAPI authentication is enabled. If an initial GSSAPI authentication attempt fails, the credentials delegated for that connection can remain active despite the lack of proper user authorization. This leaves an opportunity for a subsequent successful login to exploit the lingering credentials, thereby bypassing necessary authorization checks and potentially compromising system security.

References

https://access.redhat.com/security/cve/CVE-2026-110924
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2553033
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
4.8
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Red Hat would like to thank Moritz Theile for reporting this issue.
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