CVE-2026-39976
unknown
CVSS v3
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CVSS v4 NEW
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VIR risk
—
Description
Laravel Passport: TokenGuard Authenticates Unrelated User for Client Credentials Tokens
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Packagist | laravel/passport | >=13.0.0,<13.7.1 | 13.7.1 |
References
- https://github.com/laravel/passport/security/advisories/GHSA-349c-2h2f-mxf6
- https://nvd.nist.gov/vuln/detail/CVE-2026-39976
- https://github.com/laravel/passport/issues/1900
- https://github.com/thephpleague/oauth2-server/issues/1456#issuecomment-2734989996
- https://github.com/laravel/passport/pull/1901
- https://github.com/laravel/passport/pull/1902
- https://github.com/laravel/passport
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.