{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0","last_affected":"2.1.0"}],"component":"showdown","cve_ids":["CVE-2024-1899"],"ecosystem":"npm","epss":0.00806,"exploited":false,"fixed_versions":[],"ghsa_id":"GHSA-rmmh-p597-ppvv","id":"tcs_01M5KG9ECZEB8YQ4NHKM9SVSQD","modified_at":"2026-09-10T03:50:09.886621379Z","published_at":"2024-02-26T21:31:36Z","references":["https://osv.dev/vulnerability/GHSA-rmmh-p597-ppvv","https://nvd.nist.gov/vuln/detail/CVE-2024-1899","https://github.com/showdownjs/showdown","https://www.tenable.com/security/research/tra-2024-05"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"GHSA-rmmh-p597-ppvv","url":"https://osv.dev/vulnerability/GHSA-rmmh-p597-ppvv"}],"summary":"Showdown vulnerable to Regular Expression Denial of Service (ReDoS) in link/anchor parsing"}