{"action":"Upgrade php-league-commonmark to 2.9.0-1 or later.","affected":[{"fixed":"2.9.0-1","introduced":"0"}],"component":"php-league-commonmark","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["2.9.0-1"],"id":"tcs_01M5NTY63YYHMSVZT4RH6S8EDN","modified_at":"2026-10-25T09:47:40.743002032Z","published_at":"2026-08-06T22:18:31.893Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-71488","https://security-tracker.debian.org/tracker/CVE-2026-71488"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-71488#Debian:14/php-league-commonmark","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-71488"}],"summary":"league/commonmark is a PHP library for parsing and rendering CommonMark Markdown. From 0.6.0 until 2.9.0, specially crafted Markdown lines can cause the parser to have quadratic time complexity when c"}