AUGUST 4, 2026
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Case File

CVE-2026-29000

CRITICAL · CVSS 9.1 EPSS 5.86%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-03-04 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.1. It may be remotely exploitable.

CVE
CVE-2026-29000
Severity
CRITICAL
CVSS
9.1
EPSS
5.86%

Original NVD Description

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.