Critical severity9.6NVD Advisory· Published Apr 9, 2026· Updated Apr 23, 2026
CVE-2026-39962
CVE-2026-39962
Description
MISP is an open source threat intelligence and sharing platform. Prior to 2.5.36, improper neutralization of special elements in an LDAP query in ApacheAuthenticate.php allows LDAP injection via an unsanitized username value when ApacheAuthenticate.apacheEnv is configured to use a user-controlled server variable instead of REMOTE_USER (such as in certain proxy setups). An attacker able to control that value can manipulate the LDAP search filter and potentially bypass authentication constraints or cause unauthorized LDAP queries. This vulnerability is fixed in 2.5.36.
Affected products
1Patches
2380ee4136a7dhttps://github.com/MISP/MISPvia nvd-ref
d7d671ea8f58https://github.com/MISP/MISPvia nvd-ref
Vulnerability mechanics
Generated by null/stub on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.
References
4News mentions
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