CVE-2026-29000
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Obejście uwierzytelnienia w pac4j-jwt pozwala na fałszowanie tokenów przez zdalnych atakujących.
CVSS
9.1
EPSS
0.1%
Exploit
none
Vendor
Opis źródłowy (NVD)
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.
auth-bypass
Brak patcha
Źródła i daty
| Źródło | Wartość |
|---|---|
| NVD – CVSS | 9.1 |
| CISA KEV (aktywnie wykorzystywane) | Nie |
| FIRST EPSS (prawdopodobieństwo exploita) | 0.1% |
| Opublikowano (NVD) | 2026-03-04 22:16:18 UTC |
| Ostatnia modyfikacja (NVD) | 2026-04-16 16:18:36 UTC |
Referencje
- https://www.codeant.ai/security-research/pac4j-jwt-authentication-bypass-public-key (disclosure@vulncheck.com)
- https://www.pac4j.org/blog/security-advisory-pac4j-jwt-jwtauthenticator.html (disclosure@vulncheck.com)
- https://www.vulncheck.com/advisories/pac4j-jwt-jwtauthenticator-authentication-bypass (disclosure@vulncheck.com)