{"action":"Upgrade libssh to 0.12.1-1 or later.","affected":[{"fixed":"0.12.1-1","introduced":"0"}],"component":"libssh","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["0.12.1-1"],"id":"tcs_01M5NT62CGDSQ7V8A43J7PTHE0","modified_at":"2026-10-01T03:02:41.412753839Z","published_at":"2026-07-21T15:16:37.897Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-59851","https://security-tracker.debian.org/tracker/CVE-2026-59851"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-59851","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-59851"}],"summary":"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, al"}