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org.pac4j/pac4j-jwt 6.3.1 | Vulnerabilities | Sonatype Guide
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maven
org.pac4j
pac4j-jwt
6.3.1
pac4j-jwt 6.3.1
org.pac4j
Published
Dec 1, 2025
•
Policy
compliance
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Overview
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10.0
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9.1
CVE-2026-29000
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.
affected
Severity
Critical
Published
Mar 5, 2026
