{"action":"Upgrade authlib to 1.6.9 or later.","affected":[{"fixed":"1.6.9","introduced":"0"}],"component":"authlib","cve_ids":["CVE-2026-27962"],"ecosystem":"PyPI","epss":0.0057,"exploited":false,"fixed_versions":["1.6.9"],"ghsa_id":"GHSA-wvwj-cvrp-7pv5","id":"tcs_01M5KG2YTNKYJP9VFTB6QMVF1S","modified_at":"2026-06-29T12:26:18.949928522Z","published_at":"2026-03-16T15:17:15Z","references":["https://osv.dev/vulnerability/GHSA-wvwj-cvrp-7pv5","https://github.com/authlib/authlib/security/advisories/GHSA-wvwj-cvrp-7pv5","https://nvd.nist.gov/vuln/detail/CVE-2026-27962","https://github.com/authlib/authlib/commit/a5d4b2d4c9e46bfa11c82f85fdc2bcc0b50ae681","https://github.com/authlib/authlib","https://github.com/authlib/authlib/releases/tag/v1.6.9"],"severity":{"label":"critical","score":9.1},"sources":[{"source":"osv","source_id":"GHSA-wvwj-cvrp-7pv5","url":"https://osv.dev/vulnerability/GHSA-wvwj-cvrp-7pv5"}],"summary":"Authlib JWS JWK Header Injection: Signature Verification Bypass"}