Vulnerability Description
In express-jwt (NPM package) up and including version 5.3.3, the algorithms entry to be specified in the configuration is not being enforced. When algorithms is not specified in the configuration, with the combination of jwks-rsa, it may lead to authorization bypass. You are affected by this vulnerability if all of the following conditions apply: - You are using express-jwt - You do not have **algorithms** configured in your express-jwt configuration. - You are using libraries such as jwks-rsa as the **secret**. You can fix this by specifying **algorithms** in the express-jwt configuration. See linked GHSA for example. This is also fixed in version 6.0.0.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Auth0 | Express-Jwt | <= 5.3.3 |
Related Weaknesses (CWE)
References
- https://github.com/auth0/express-jwt/commit/7ecab5f8f0cab5297c2b863596566eb0c019PatchThird Party Advisory
- https://github.com/auth0/express-jwt/security/advisories/GHSA-6g6m-m6h5-w9gfThird Party Advisory
- https://github.com/auth0/express-jwt/commit/7ecab5f8f0cab5297c2b863596566eb0c019PatchThird Party Advisory
- https://github.com/auth0/express-jwt/security/advisories/GHSA-6g6m-m6h5-w9gfThird Party Advisory
FAQ
What is CVE-2020-15084?
CVE-2020-15084 is a vulnerability with a CVSS score of 7.7 (HIGH). In express-jwt (NPM package) up and including version 5.3.3, the algorithms entry to be specified in the configuration is not being enforced. When algorithms is not specified in the configuration, wit...
How severe is CVE-2020-15084?
CVE-2020-15084 has been rated HIGH with a CVSS base score of 7.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-15084?
Check the references section above for vendor advisories and patch information. Affected products include: Auth0 Express-Jwt.