CVE-2026-29000
unknown
CVSS v3
—
CVSS v4 NEW
—
VIR risk
—
Description
pac4j-jwt: JwtAuthenticator Authentication Bypass via JWE-Wrapped PlainJWT
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 |
|---|---|---|---|
| Maven | org.pac4j:pac4j-jwt | >=6.0.4.1,<6.3.3 | 6.3.3 |
| Maven | org.pac4j:pac4j-jwt | >=5.0.0-RC1,<5.7.9 | 5.7.9 |
| Maven | org.pac4j:pac4j-jwt | <4.5.9 | 4.5.9 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-29000
- https://github.com/pac4j/pac4j
- https://www.codeant.ai/security-research/pac4j-jwt-authentication-bypass-public-key
- https://www.pac4j.org/blog/security-advisory-pac4j-jwt-jwtauthenticator.html
- https://www.vulncheck.com/advisories/pac4j-jwt-jwtauthenticator-authentication-bypass
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.