CVE-2020-26160 – jwt-go: access restriction bypass vulnerability

https://notcve.org/view.php?id=CVE-2020-26160

30 Sep 2020 — jwt-go before 4.0.0-preview1 allows attackers to bypass intended access restrictions in situations with []string{} for m["aud"] (which is allowed by the specification). Because the type assertion fails, "" is the value of aud. This is a security problem if the JWT token is presented to a service that lacks its own audience check. jwt-go versiones anteriores a 4.0.0-preview1, permite a atacantes omitir las restricciones de acceso previstas en situaciones con []string{} para m["aud"] (que está permitido por l... • https://github.com/dgrijalva/jwt-go/pull/426 • CWE-284: Improper Access Control CWE-287: Improper Authentication CWE-755: Improper Handling of Exceptional Conditions •