{"action":"Upgrade github.com/oauth2-proxy/oauth2-proxy/v7 to 7.15.2 or later.","affected":[{"fixed":"7.15.2","introduced":"0"}],"component":"github.com/oauth2-proxy/oauth2-proxy/v7","cve_ids":["CVE-2026-34457"],"ecosystem":"Go","epss":0.00475,"exploited":false,"fixed_versions":["7.15.2"],"ghsa_id":"GHSA-5hvv-m4w4-gf6v","id":"tcs_01M5KEYDC74E0SV3VD97XEMN3B","modified_at":"2026-06-25T18:56:29.674113323Z","published_at":"2026-04-14T22:31:19Z","references":["https://osv.dev/vulnerability/GHSA-5hvv-m4w4-gf6v","https://github.com/oauth2-proxy/oauth2-proxy/security/advisories/GHSA-5hvv-m4w4-gf6v","https://nvd.nist.gov/vuln/detail/CVE-2026-34457","https://github.com/oauth2-proxy/oauth2-proxy","https://github.com/oauth2-proxy/oauth2-proxy/releases/tag/v7.15.2"],"severity":{"label":"critical","score":9.1},"sources":[{"source":"osv","source_id":"GHSA-5hvv-m4w4-gf6v","url":"https://osv.dev/vulnerability/GHSA-5hvv-m4w4-gf6v"}],"summary":"OAuth2 Proxy's Health Check User-Agent Matching Bypasses Authentication in auth_request Mode"}