CVE-2026-110924 PUBLISHED

Openssh: openssh: gssapi delegated credentials can be stored after a failed authentication

Assigner: redhat
Reserved: 15.10.2026 Published: 15.10.2026 Updated: 15.10.2026

A flaw was found in OpenSSH. With GSSAPI authentication enabled, a failed GSSAPI attempt can leave delegated credentials stored for the connection even though user authorization did not succeed. A later successful login on that connection is not authorized by the leftover state.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS Score: 4.8

Product Status

Vendor Red Hat
Product Red Hat Enterprise Linux 10
Versions Default: affected
Vendor Red Hat
Product Red Hat Enterprise Linux 6
Versions Default: affected
Vendor Red Hat
Product Red Hat Enterprise Linux 7
Versions Default: affected
Vendor Red Hat
Product Red Hat Enterprise Linux 8
Versions Default: affected
Vendor Red Hat
Product Red Hat Enterprise Linux 9
Versions Default: affected
Vendor Red Hat
Product Red Hat Hardened Images
Versions Default: affected
Vendor Red Hat
Product Red Hat Hardened Images
Versions Default: affected
Vendor Red Hat
Product Red Hat OpenShift Container Platform 4
Versions Default: affected
Vendor Red Hat
Product Red Hat OpenShift Container Platform 4
Versions Default: affected

Workarounds

Set GSSAPIDelegateCredentials to no where that option exists, or set GSSAPIAuthentication to no if GSSAPI authentication is not required.

Credits

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

References

Problem Types

  • Incomplete Cleanup CWE