CVE-2026-40459PAC4J is vulnerable to LDAP Injection in multiple methods.
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No exploitation reported and no EPSS estimate yet.
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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
- CVSS
- 8.8 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-90
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
pac4j pac4j pac4j:pac4j | from 4.0.0 before 4.5.10; from 5.0.0 before 5.7.10; from 6.0.0 before 6.4.1 | NVD |
References
- https://cert.pl/en/posts/2026/04/CVE-2026-40458/third-party-advisory
- https://www.pac4j.org/blog/security-advisory-pac4j-core-and-ldap.htmlvendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.