VDB
GHSA-wvwj-cvrp-7pv5
GHSA-wvwj-cvrp-7pv5
PUBLISHED
CVSS 9.100000381469727 CRITICAL
Authlib JWS JWK Header Injection: Signature Verification Bypass
Record from GitHub Advisory Database · Published March 16, 2026
authlib is fixed in 1.6.9 (PyPI)
Authlib JWS JWK Header Injection: Signature Verification Bypass
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 | 1.6.9 |
Risk scores
CVSS 3.1
9.100000381469727
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Affected products
| Vendor | Product | Versions |
|---|---|---|
| PyPI | authlib | 0 |
Timeline
- Mar 16, 2026 CVE Published
- Mar 29, 2026 Security Advisory
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln GHSA-wvwj-cvrp-7pv5
vulnetix vdb fixes GHSA-wvwj-cvrp-7pv5Or 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-wvwj-cvrp-7pv5/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 package
- https://github.com/authlib/authlib/releases/tag/v1.6.9 fix
- Authlib JWS JWK Header Injection: Signature Verification Bypass advisory
- https://github.com/authlib/authlib/security/advisories/GHSA-wvwj-cvrp-7pv5 url
- https://nvd.nist.gov/vuln/detail/CVE-2026-27962 advisory
- https://github.com/authlib/authlib/commit/a5d4b2d4c9e46bfa11c82f85fdc2bcc0b50ae681 fix