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
References (2)
Core 2
Core References
Third Party Advisory third-party-advisory
https://cert.pl/en/posts/2026/04/CVE-2026-40458/
Vendor Advisory vendor-advisory
https://www.pac4j.org/blog/security-advisory-pac4j-core-and-ldap.html
Scores
CVSS v3
8.8
EPSS
0.0061
EPSS Percentile
44.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-90
Status
published
Products (4)
PAC4J/PAC4J
4.0 - 4.5.10
pac4j/pac4j
4.0.0 - 4.5.10
PAC4J/PAC4J
5.0 - 5.7.10
PAC4J/PAC4J
6.0 - 6.4.1
Published
Apr 17, 2026
Tracked Since
Apr 17, 2026