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CVE-2024-37568

7.5 · HIGH

lepture Authlib before 1.3.1 has algorithm confusion with asymmetric public keys.

Published Jun 9, 2024CWE-347EPSS 0.38%

Overview

CVE-2024-37568 is a high-severity vulnerability. It was published on June 9, 2024 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

lepture Authlib before 1.3.1 has algorithm confusion with asymmetric public keys. Unless an algorithm is specified in a jwt.decode call, HMAC verification is allowed with any asymmetric public key. (This is similar to CVE-2022-29217 and CVE-2024-33663.)

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/lepture/authlib/issues/654Reflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FHJI32SN4FNAUVNALVGOKWHNSQ6XS3M5/Reflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IZI7HYGN7VZAYFV6UV3SRLYF7QGERXIU/Refwww.vicarius.io/vsociety/posts/algorithm-confusion-in-lepture-authlib-cve-2024-37568GitHubgithub.com/lepture/authlib/issues/654Reflists.debian.org/debian-lts-announce/2025/10/msg00032.htmlReflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FHJI32SN4FNAUVNALVGOKWHNSQ6XS3M5/Reflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IZI7HYGN7VZAYFV6UV3SRLYF7QGERXIU/Refwww.vicarius.io/vsociety/posts/algorithm-confusion-in-lepture-authlib-cve-2024-37568

How CyberStrike helps

Frequently asked questions

What is CVE-2024-37568?

CVE-2024-37568 is a high-severity vulnerability. It was published on June 9, 2024 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-37568?

This vulnerability has a CVSS 3.1 base score of 7.5, 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-2024-37568?

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-2024-37568?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-37568 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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