{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"python-markdown2","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":[],"id":"tcs_01M5NW5MPWDQP01HJ1A8NRYCTG","modified_at":"2026-10-23T18:04:42.439492146Z","published_at":"2026-10-15T16:18:22.887Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-88753","https://security-tracker.debian.org/tracker/CVE-2026-88753"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-88753#Debian:14/python-markdown2","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-88753"}],"summary":"A Regular-Expression Denial of Service (ReDoS) in the Markdown2. extract_metadata() function (lib/markdown2.py) of trentm markdown2 through v2.5.5 allows attackers to cause a Denial of Service (DoS) v"}