CVE-2024-37568
unknown
CVSS v3
—
CVSS v2
—
VIR risk
—
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.)
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2024-37568
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2024-37568.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 1.2.0-1+deb12u1 |
| debian | bullseye | fixed | 0.15.4-1+deb11u1 |
| debian | forky | fixed | 1.3.1-1 |
| debian | sid | fixed | 1.3.1-1 |
| debian | trixie | fixed | 1.3.1-1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| PyPI | authlib | <1.3.1 | 1.3.1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2024-37568
- https://github.com/lepture/authlib/issues/654
- https://github.com/lepture/authlib
- https://github.com/pypa/advisory-database/tree/main/vulns/authlib/PYSEC-2024-52.yaml
- https://lists.debian.org/debian-lts-announce/2025/10/msg00032.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FHJI32SN4FNAUVNALVGOKWHNSQ6XS3M5
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IZI7HYGN7VZAYFV6UV3SRLYF7QGERXIU
- https://www.vicarius.io/vsociety/posts/algorithm-confusion-in-lepture-authlib-cve-2024-37568
- https://www.suse.com/security/cve/CVE-2024-37568.html
- https://security-tracker.debian.org/tracker/CVE-2024-37568
Verify integrity in audit chain (admin only). AS-IS.