{"action":"Upgrade php-league-commonmark to 2.3.9-1+deb12u1 or later.","affected":[{"fixed":"2.3.9-1+deb12u1","introduced":"0"}],"component":"php-league-commonmark","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["2.3.9-1+deb12u1"],"id":"tcs_01M5NRQKKCTDGGA3EJEY3NC5C8","modified_at":"2026-10-01T03:02:37.300460302Z","published_at":"2026-03-24T20:16:29.240Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-33347","https://security-tracker.debian.org/tracker/CVE-2026-33347"],"severity":{"label":"medium","score":6.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-33347","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-33347"}],"summary":"league/commonmark is a PHP Markdown parser. From version 2.3.0 to before version 2.8.2, the DomainFilteringAdapter in the Embed extension is vulnerable to an allowlist bypass due to a missing hostname"}