Rybbit Reflects Any Origin in CORS Responses While Allowing Credentials
Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.
cve-program · CVE-2026-82287
PublishedRybbit 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.
Read the publisher's advisoryAffected versions, risk and source history
Related advisories and sources
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CVE-2026-82287 · CVE overview and exploitation status
cve-program · CVE-2026-82287
- https://github.com/rybbit-io/rybbit/issues/1038
- https://github.com/rybbit-io/rybbit
- https://github.com/rybbit-io/rybbit/blob/v2.6.0/server/src/index.ts
- https://github.com/rybbit-io/rybbit/commit/6f1039bdd3328a84d6700031bc0ce4714020e2f9
- https://www.vulncheck.com/advisories/rybbit-reflects-any-origin-in-cors-responses-while-allowing-credentials
This historical advisory does not include today's related changes. Open the latest advisory to find current connections.