CVE-2022-23540 - Improper validation

Severity: High2023-03-22

Abstract

In versions `<=8.5.1` of jsonwebtoken library, lack of algorithm definition in the `jwt.verify()` function can lead to signature validation bypass due to defaulting to the `none` algorithm for signature verification. Users are affected if you do not specify algorithms in the `jwt.verify()` function. This issue has been fixed, please update to version 9.0.0 which removes the default support for the none algorithm in the `jwt.verify()` method. There will be no impact, if you update to version 9.0.0 and you don’t need to allow for the `none` algorithm. If you need 'none' algorithm, you have to explicitly specify that in `jwt.verify()` options.

The Oxygen products incorporate jsonwebtoken as a third-party library. This advisory was opened to address the potential impact of this third-party library vulnerability.