CVE-2020-26160
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductJwt-go
PublishedSep 30, 2020
First seenSep 30, 2020
How to fix
Update
- github.com/dgrijalva/jwt-go/v44.0.0-preview1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| jwt-go_project jwt-go | v ≤ 3.2.0 | — |
| github.com/dgrijalva/jwt-goGo | 0.0.0-20150717181359-44718f8a89b0 ≤ v ≤ 3.2.0, 0.0.0-20150717181359-44718f8a89b0 ≤ v | — |
| github.com/dgrijalva/jwt-go/v4Go | v < 4.0.0-preview1 | 4.0.0-preview1 |
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