CVE-2026-40459
highpriority · track · 35EPSS 0.006 · 49 %ileEUUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.3–8.8
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (6)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://nvd.nist.gov/vuln/detail/CVE-2026-40459cnnvd
- https://www.pac4j.org/Patchcnnvd
- https://cert.pl/en/posts/2026/04/CVE-2026-40458/enisa_euvd
- https://www.pac4j.org/blog/security-advisory-pac4j-core-and-ldap.htmlenisa_euvd
- https://cert.pl/en/posts/2026/04/CVE-2026-40458/Third Party Advisorynvd
- https://www.pac4j.org/blog/security-advisory-pac4j-core-and-ldap.htmlVendor Advisorynvd
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