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Improper Handling of Exceptional Conditions

CVE-2020-26160

Severity High
Score 7.5/10

Summary

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.

  • LOW
  • NETWORK
  • NONE
  • UNCHANGED
  • NONE
  • NONE
  • HIGH
  • NONE

CWE-755 - Improper Handling of Exceptional Conditions

The software does not handle or incorrectly handles an exceptional condition.

Advisory Timeline

  • Published