{"id":"CVE-2026-82287","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-82287","summary":"Rybbit before 2.7.0 contains a CORS misconfiguration vulnerability that allows attackers to bypass origin restrictions by reflecting any request origin in Access-Control-Allow-Origin…","details":"Rybbit before 2.7.0 contains a CORS misconfiguration vulnerability that allows attackers to bypass origin restrictions by reflecting any request origin in Access-Control-Allow-Origin responses while credentials are enabled. Attackers can issue credentialed cross-origin requests from any website to read analytics data, account information, and perform authenticated state-changing operations as the victim user.","published":"2026-08-28T20:20:20.243","modified":"2026-08-28T20:20:20.243","cvss":{"score":8.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/rybbit-io/rybbit/commit/6f1039bdd3328a84d6700031bc0ce4714020e2f9","label":"rybbit-io/rybbit@6f1039b"},"references":[{"type":"WEB","url":"https://github.com/rybbit-io/rybbit"},{"type":"WEB","url":"https://github.com/rybbit-io/rybbit/blob/v2.6.0/server/src/index.ts"},{"type":"WEB","url":"https://github.com/rybbit-io/rybbit/commit/6f1039bdd3328a84d6700031bc0ce4714020e2f9"},{"type":"WEB","url":"https://github.com/rybbit-io/rybbit/issues/1038"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/rybbit-reflects-any-origin-in-cors-responses-while-allowing-credentials"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-08-28T20:20:20.243"}}