Improper Verification of Cryptographic Signature Affecting python-authlib package, versions <1.2.0-1+deb12u1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.38% (30th percentile)

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  • Snyk IDSNYK-ECHOLATEST-PYTHONAUTHLIB-18388446
  • published29 Jul 2026
  • disclosed9 Jun 2024

Introduced: 9 Jun 2024

CVE-2024-37568  (opens in a new tab)
CWE-347  (opens in a new tab)

How to fix?

Upgrade Echo:latest python-authlib to version 1.2.0-1+deb12u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-authlib package and not the python-authlib package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

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.)

CVSS Base Scores

version 3.1