7.5

CVE-2024-37568: authlib

CVSS: 7.5v3.1HighModified
AliasesMGASA-2024-0238SUSE-SU-2024:2064-1GHSA-5357-c2jx-v7qh
Published 09-06-2024Last modified 03-11-2025
Open JSON

Vulnerability summary

CVE-2024-37568 is a high (CVSS 7.5) vulnerability in authlib. EPSS estimates a 0.38% chance of exploitation in the next 30 days, higher than 30.7% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
40/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.38%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 2 · Related 1
DLA-4352-1USN-8065-1

Timeline

  1. 09-06-2024
    PublishedVulnerability first disclosed.
  2. 03-11-2025
    Last modifiedVulnerability information updated.

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.)

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.38%

Chance of exploitation in the next 30 days

Percentile

31%

Versus all other CVEs

30-day change

0.00 pp

From 0.38% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.38%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Authlib

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Opensuse2 products
  • python-Authlib&distro=openSUSE Leap 15.6< 1.3.1-150600.3.3.1
  • python-Authlib&distro=openSUSE Tumbleweed< 1.3.1-1.1 | < 1.7.2-3.1
Authlib1 product
Debian1 product
  • python-authlib< 1.2.0-1+deb12u1 | < 1.3.1-1
Mageia1 product
  • python-authlib< 1.3.1-1.mga9
PyPI1 product
  • authlib< 1.3.1
Suse1 product
  • python-Authlib&distro=SUSE Linux Enterprise Module for Python 3 15 SP6< 1.3.1-150600.3.3.1
Ubuntu1 product
  • python-authlib< 0.15.5-1ubuntu0.1~esm1 | < 1.3.0-1ubuntu0.1~esm1 | All versions (No fix recorded)

7 vendors · 8 products

References

22 links
Show all 22 references