Description

PAC4J is vulnerable to LDAP Injection in multiple methods. A low-privileged remote attacker can inject crafted LDAP syntax into ID-based search parameters, potentially resulting in unauthorized LDAP queries and arbitrary directory operations. This issue was fixed in PAC4J versions 4.5.10, 5.7.10 and 6.4.1

INFO

Published Date :

2026-04-17T13:18:39.181Z

Last Modified :

2026-04-17T13:54:22.069Z

Source :

CERT-PL
AFFECTED PRODUCTS

The following products are affected by CVE-2026-40459 vulnerability.

Vendors Products
Pac4j
  • Pac4j
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-40459.

URL Resource
https://cert.pl/en/posts/2026/04/CVE-2026-40458/ cve-icon cve-icon
https://www.pac4j.org/blog/security-advisory-pac4j-core-and-ldap.html cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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Attack Requirements
Privileges Required
User Interaction
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SS Confidentiality
SS Integrity
SS Availability