{"action":"Upgrade krb5 to 1.8+dfsg~alpha1-1 or later.","affected":[{"fixed":"1.8+dfsg~alpha1-1","introduced":"0"}],"component":"krb5","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["1.8+dfsg~alpha1-1"],"id":"tcs_01M5N9MX1DJMTQSTTBAR3GD6AS","modified_at":"2026-10-23T17:47:46.480733545Z","published_at":"2010-12-02T16:22:21.240Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2010-4021","https://security-tracker.debian.org/tracker/CVE-2010-4021"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2010-4021","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2010-4021"}],"summary":"The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.7 does not properly restrict the use of TGT credentials for armoring TGS requests, which might allow remote authenticated users to impe"}