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CVE-2022-29217

7.4 · HIGH

PyJWT is a Python implementation of RFC 7519.

Published May 24, 2022CWE-327EPSS 1.35%

Overview

CVE-2022-29217 is a high-severity vulnerability. It was published on May 24, 2022 and has a CVSS 3.1 base score of 7.4 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.4, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

PyJWT is a Python implementation of RFC 7519. PyJWT supports multiple different JWT signing algorithms. With JWT, an attacker submitting the JWT token can choose the used signing algorithm. The PyJWT library requires that the application chooses what algorithms are supported. The application can specify `jwt.algorithms.get_default_algorithms()` to get support for all algorithms, or specify a single algorithm. The issue is not that big as `algorithms=jwt.algorithms.get_default_algorithms()` has to be used. Users should upgrade to v2.4.0 to receive a patch for this issue. As a workaround, always be explicit with the algorithms that are accepted and expected when decoding.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/jpadilla/pyjwt/commit/9c528670c455b8d948aff95ed50e22940d1ad3fcGitHubgithub.com/jpadilla/pyjwt/releases/tag/2.4.0GitHubgithub.com/jpadilla/pyjwt/security/advisories/GHSA-ffqj-6fqr-9h24Reflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5PK7IQCBVNLYJEFTPHBBPFP72H4WUFNX/Reflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6HIYEYZRQEP6QTHT3EHH3RGFYJIHIMAO/GitHubgithub.com/jpadilla/pyjwt/commit/9c528670c455b8d948aff95ed50e22940d1ad3fcGitHubgithub.com/jpadilla/pyjwt/releases/tag/2.4.0GitHubgithub.com/jpadilla/pyjwt/security/advisories/GHSA-ffqj-6fqr-9h24Reflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5PK7IQCBVNLYJEFTPHBBPFP72H4WUFNX/Reflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6HIYEYZRQEP6QTHT3EHH3RGFYJIHIMAO/

How CyberStrike helps

Frequently asked questions

What is CVE-2022-29217?

CVE-2022-29217 is a high-severity vulnerability. It was published on May 24, 2022 and has a CVSS 3.1 base score of 7.4 (HIGH).

How severe is CVE-2022-29217?

This vulnerability has a CVSS 3.1 base score of 7.4, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2022-29217?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-29217?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-29217 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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