VDB
GHSA-pq5p-34cr-23v9
GHSA-pq5p-34cr-23v9
PUBLISHED
CVSS 7.5 HIGH
Authlib is vulnerable to Denial of Service via Oversized JOSE Segments
Record from GitHub Advisory Database · Published October 10, 2025
authlib is fixed in 1.6.5 (PyPI)
Authlib is vulnerable to Denial of Service via Oversized JOSE Segments
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| authlib | PyPI | 1.6.5 |
| mlflow | Chainguard | 3.4.0-r2 |
| mlflow | Wolfi | 3.4.0-r2 |
Risk scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
| Vendor | Product | Versions |
|---|---|---|
| PyPI | authlib | 0 |
| chainguard | mlflow | 0 |
| PyPI | authlib | 0 |
| wolfi | mlflow | 0 |
Timeline
- Oct 10, 2025 CVE Published
- Mar 2, 2026 Security Advisory
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln GHSA-pq5p-34cr-23v9
vulnetix vdb fixes GHSA-pq5p-34cr-23v9Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
"https://api.vdb.vulnetix.com/v2/vuln/GHSA-pq5p-34cr-23v9/fixes/registry"The Community plan is free and allows 50 queries a day. Get a free API key · API quickstart
References
- https://github.com/authlib/authlib/security/advisories/GHSA-pq5p-34cr-23v9 url
- https://nvd.nist.gov/vuln/detail/CVE-2025-61920 advisory
- https://github.com/authlib/authlib/commit/867e3f87b072347a1ae9cf6983cc8bbf88447e5e url
- https://github.com/authlib/authlib package
- https://lists.debian.org/debian-lts-announce/2025/10/msg00032.html url
- GitHub Advisory GHSA-pq5p-34cr-23v9 vendor-advisory