{"action":"Upgrade php8.4 to 8.4.26-1~deb13u1 or later.","affected":[{"fixed":"8.4.26-1~deb13u1","introduced":"0"}],"component":"php8.4","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["8.4.26-1~deb13u1"],"id":"tcs_01M5NWMMJSZM26280YETK91J5P","modified_at":"2026-10-24T09:47:36.623860282Z","published_at":"2026-09-25T21:17:24.913Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-91769","https://security-tracker.debian.org/tracker/CVE-2026-91769"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-91769#Debian:13/php8.4","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-91769"}],"summary":"PHP's OpenSSL stream peer verification checks the certificate's subjectAltName entries first and, whenever no entry matches, falls back to the Common Name. RFC 6125 requires the CN to be ignored once"}