CVE-2026-82287

Description

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.

References

https://www.vulncheck.com/advisories/rybbit-reflects-any-origin-in-cors-responses-while-allowing-credentials

https://github.com/rybbit-io/rybbit/issues/1038

https://github.com/rybbit-io/rybbit/commit/6f1039bdd3328a84d6700031bc0ce4714020e2f9

https://github.com/rybbit-io/rybbit/blob/v2.6.0/server/src/index.ts

https://github.com/rybbit-io/rybbit

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4