dgrijalva/jwt-go · Security
Authorization bypass in github.com/dgrijalva/jwt-go
- GHSA ID
- GHSA-w73w-5m7g-f7qc
- CVE ID
- CVE-2020-26160
- Severity
- high
- Published
- Updated
- CVSS
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CVSS v3
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Description
jwt-go 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. There is no patch available and users of jwt-go are advised to migrate to golang-jwt at version 3.2.1
CWEs
- CWE-287 · Improper Authentication
- CWE-755 · Improper Handling of Exceptional Conditions
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-26160 ↗
- https://github.com/dgrijalva/jwt-go/issues/422 ↗
- https://github.com/dgrijalva/jwt-go/pull/426 ↗
- https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMDGRIJALVAJWTGO-596515 ↗
- https://github.com/dgrijalva/jwt-go/issues/462 ↗
- https://github.com/dgrijalva/jwt-go/commit/ec0a89a131e3e8567adcb21254a5cd20a70ea4ab ↗
- https://pkg.go.dev/vuln/GO-2020-0017 ↗
- https://github.com/advisories/GHSA-w73w-5m7g-f7qc ↗