VDB
CVE-2026-29000
CVE-2026-29000
PUBLISHED
CVSS 9.300000190734863 CRITICAL
pac4j-jwt: JwtAuthenticator Authentication Bypass via JWE-Wrapped PlainJWT
EPSS 0.04% · 12.0th percentile
Risk Scores
CVSS 4.0
9.300000190734863
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
EPSS Score
0.04%
12.0th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Maven | org.pac4j:pac4j-jwt | 6.0.4.1, 5.0.0-RC1, 5.0.0-RC1 |
| pac4j | pac4j-jwt | 5.0, 6.0, 4.0 |
| pac4j | pac4j | 5.0, 6.0, 4.0 |
Timeline
- Mar 4, 2026 CVE Published
- Mar 4, 2026 PoC Published
- Mar 5, 2026 EPSS Score
- Mar 5, 2026 PoC Published
- Mar 5, 2026 PoC Published
- Mar 5, 2026 PoC Published
- Mar 5, 2026 PoC Published
- Mar 5, 2026 PoC Published
- Mar 5, 2026 PoC Published
- Mar 5, 2026 PoC Published
- Mar 5, 2026 PoC Published
- Mar 5, 2026 PoC Published
References
- https://www.pac4j.org/blog/security-advisory-pac4j-jwt-jwtauthenticator.html vendor-advisory
- https://www.codeant.ai/security-research/pac4j-jwt-authentication-bypass-public-key exploit
- https://www.vulncheck.com/advisories/pac4j-jwt-jwtauthenticator-authentication-bypass third-party-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-29000 advisory
- https://github.com/pac4j/pac4j package