Vulnerability in Authlib

CVE-2024-37568

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.)

EPSS: 0.004 (30.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2024-37568?
CVE-2024-37568 is a high-severity vulnerability in Authlib, classified under Improper Verification of Cryptographic Signature. CVSS score: 7.5/10. Published 2024-06-09.
How severe is CVE-2024-37568?
High severity. CVSS v3 base score is 7.5 out of 10.