CVE-2026-29000
pac4j-jwt: JwtAuthenticator Authentication Bypass via JWE-Wrapped PlainJWT
Kaynağa göre önem derecesi
Trivy'nin kendi etiketi CRITICAL. Kritik diyenler: GHSA.
Açıklama
pac4j-jwt versions prior to 4.5.9, 5.7.9, and 6.3.3 contain an authentication bypass vulnerability in JwtAuthenticator when processing encrypted JWTs that allows remote attackers to forge authentication tokens. Attackers who possess the server's RSA public key can create a JWE-wrapped PlainJWT with arbitrary subject and role claims, bypassing signature verification to authenticate as any user including administrators.
Etkilenen paketler ve düzeltilmiş sürümler
| Kaynak | Paket | Düzeltildiği sürüm |
|---|---|---|
| maven::GitHub Security Advisory Maven | org.pac4j:pac4j-jwt | 6.3.3, 5.7.9, 4.5.9 |
Referanslar
- https://github.com/pac4j/pac4j
- https://nvd.nist.gov/vuln/detail/CVE-2026-29000
- 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