CVE-2020-26160 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Reference

https://github.com/dgrijalva/jwt-go/pull/426 https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMDGRIJALVAJWTGO-596515

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

7.5