PT-2026-33452 · Pac4J · Pac4J

Published 2026-04-17 · Updated 2026-04-17 · CVE-2026-40459

NVD

CVSS v4.0

8.7

High

AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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

Fix

Weakness Enumeration

CWE-90

Related Identifiers

CVE-2026-40459

Affected Products

Pac4J

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-40459 · Security Note
• https://pac4j.org/blog/security-advisory-pac4j-core-and-ldap.html · Vendor Advisory
• https://cert.pl/en/posts/2026/04/CVE-2026-40458 · Note
• https://twitter.com/vuldb/status/2045254274343743881 · Twitter Post