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.
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18 Feb 2026 09:18Current
6.2Medium risk
Vulners AI Score6.2
CVSS 25
CVSS 3.17.5
EPSS0.02158