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SCA: security update for org.pac4j:pac4j-jwt (GHSA-pm7g-w2cf-q238)

critical Tenable Self-Hosted Container Security Plugin ID 438449

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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. (CVE-2026-29000)

See Also

https://github.com/advisories/GHSA-pm7g-w2cf-q238

Plugin Details

Severity: Critical

ID: 438449

Version: Revision 1.8

Type: Local

Family: SCA Checks

Published: 3/6/2026

Updated: 7/15/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: High

Score: 7

Percentile: 98.3

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N

CVSS Score Source: CVE-2026-29000

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 8.2

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS v4

Risk Factor: Critical

Base Score: 9.3

Threat Score: 8.8

Threat Vector: CVSS:4.0/E:P

Vector: 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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/5/2026

Vulnerability Publication Date: 3/4/2026

Reference Information

CVE: CVE-2026-29000

cwe: CWE-347