{"action":"Upgrade 9router to 0.5.2 or later.","affected":[{"fixed":"0.5.2","introduced":"0"}],"component":"9router","cve_ids":["CVE-2026-55638"],"ecosystem":"npm","epss":0.06581,"exploited":false,"fixed_versions":["0.5.2"],"ghsa_id":"GHSA-8gmq-j984-vp4r","id":"tcs_01M5KFCXG20QP5YV2Q1ZMD6SA5","modified_at":"2026-08-28T18:45:06.829619224Z","published_at":"2026-08-28T18:32:01Z","references":["https://osv.dev/vulnerability/GHSA-8gmq-j984-vp4r","https://github.com/decolua/9router/security/advisories/GHSA-8gmq-j984-vp4r","https://nvd.nist.gov/vuln/detail/CVE-2026-55638","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":8.6},"sources":[{"source":"osv","source_id":"GHSA-8gmq-j984-vp4r","url":"https://osv.dev/vulnerability/GHSA-8gmq-j984-vp4r"}],"summary":"9router: Unauthenticated LLM proxy access via /codex rewrite authorization bypass"}