Detections
Analytics
CVE-2026-59851
high
Description
A flaw was found in libssh. On servers with GSSAPIKeyExchange enabled, the gssapi-keyex path does not verify whether the authenticated Kerberos principal is authorized for the requested local user, allowing authenticated clients to log in as arbitrary users.
References
https://bugzilla.redhat.com/show_bug.cgi?id=2498184