{"action":"Upgrade 9router to 0.5.2 or later.","affected":[{"fixed":"0.5.2","introduced":"0"}],"component":"9router","cve_ids":["CVE-2026-55641"],"ecosystem":"npm","epss":0.00326,"exploited":false,"fixed_versions":["0.5.2"],"ghsa_id":"GHSA-86m2-fcxq-5q7c","id":"tcs_01M5KFC08E5TJ11QZATA7PM1RM","modified_at":"2026-08-28T18:45:07.831453959Z","published_at":"2026-08-28T18:33:20Z","references":["https://osv.dev/vulnerability/GHSA-86m2-fcxq-5q7c","https://github.com/decolua/9router/security/advisories/GHSA-86m2-fcxq-5q7c","https://nvd.nist.gov/vuln/detail/CVE-2026-55641","https://github.com/decolua/9router/commit/b282f0554972ea35281520738759d76abcd0b0b3","https://github.com/decolua/9router","https://github.com/decolua/9router/releases/tag/v0.5.2"],"severity":{"label":"high","score":8.2},"sources":[{"source":"osv","source_id":"GHSA-86m2-fcxq-5q7c","url":"https://osv.dev/vulnerability/GHSA-86m2-fcxq-5q7c"}],"summary":"9router: Unauthenticated `/v1` proxy access via `Host`-header spoofing → open AI relay + SSRF"}