{"action":"Upgrade morgan to 1.12.1 or later.","affected":[{"fixed":"1.12.1","introduced":"0"}],"component":"morgan","cve_ids":["CVE-2026-87859"],"ecosystem":"npm","epss":0.0041,"exploited":false,"fixed_versions":["1.12.1"],"ghsa_id":"GHSA-9f6g-j8ch-79g4","id":"tcs_01M5KFFNR4AAKYMGDMN5J1QH0S","modified_at":"2026-09-28T21:45:03.858040877Z","published_at":"2026-09-28T21:33:08Z","references":["https://osv.dev/vulnerability/GHSA-9f6g-j8ch-79g4","https://github.com/expressjs/morgan/security/advisories/GHSA-9f6g-j8ch-79g4","https://nvd.nist.gov/vuln/detail/CVE-2026-87859","https://github.com/expressjs/morgan/commit/4b695edf967ce179cdf4009fe8cddd184b7511ee","https://cna.openjsf.org/security-advisories.html","https://github.com/expressjs/morgan","https://github.com/expressjs/morgan/releases/tag/1.12.1"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"GHSA-9f6g-j8ch-79g4","url":"https://osv.dev/vulnerability/GHSA-9f6g-j8ch-79g4"}],"summary":"morgan vulnerable to Log Injection via unescaped double quote in quoted log fields"}