GHSA-w73w-5m7g-f7qc
Authorization bypass in github.com/dgrijalva/jwt-go
At a glance
- Published
- Updated
- CVE
- CVE-2020-26160
- Aliases
- GO-2020-0017, SNYK-GOLANG-GITHUBCOMDGRIJALVAJWTGO-596515
- CVSS_V3
- 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](https://github.com/golang-jwt/jwt) at version 3.2.1
Affected packages
| Package | Versions |
|---|---|
| Go · github.com/dgrijalva/jwt-go | introduced 0.0.0-20150717181359-44718f8a89b0, last affected 3.2.0 |
| Go · github.com/dgrijalva/jwt-go/v4 | introduced 0, fixed 4.0.0-preview1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-26160 ADVISORY
- https://github.com/dgrijalva/jwt-go/issues/422 WEB
- https://github.com/dgrijalva/jwt-go/issues/462 WEB
- https://github.com/dgrijalva/jwt-go/pull/426 WEB
- https://github.com/dgrijalva/jwt-go/commit/ec0a89a131e3e8567adcb21254a5cd20a70ea4ab WEB
- https://github.com/dgrijalva/jwt-go PACKAGE
- https://pkg.go.dev/vuln/GO-2020-0017 WEB
- https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMDGRIJALVAJWTGO-596515 WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |