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
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 17 Apr 2026 15:00:00 +0000

Type Values Removed Values Added
First Time appeared Pac4j
Pac4j pac4j
Vendors & Products Pac4j
Pac4j pac4j

Fri, 17 Apr 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 17 Apr 2026 13:45:00 +0000

Type Values Removed Values Added
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
Title LDAP Injection in PAC4J
Weaknesses CWE-90
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: CERT-PL

Published:

Updated: 2026-04-17T13:54:22.069Z

Reserved: 2026-04-13T10:06:07.141Z

Link: CVE-2026-40459

cve-icon Vulnrichment

Updated: 2026-04-17T13:53:06.405Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-04-17T14:16:34.123

Modified: 2026-04-17T15:38:09.243

Link: CVE-2026-40459

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-17T14:45:20Z

Weaknesses