Vulnerability 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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Misp | Misp | < 2.5.36 |
Related Weaknesses (CWE)
References
- https://github.com/MISP/MISP/commit/380ee4136a7d9ce2fe63fce06d517839f30aba10Patch
- https://github.com/MISP/MISP/commit/d7d671ea8f5822e91207dcad2003c35c30092a32Patch
- https://github.com/MISP/MISP/releases/tag/v2.5.36ProductRelease Notes
- https://github.com/MISP/MISP/security/advisories/GHSA-mc53-48w8-9g63Vendor Advisory
FAQ
What is CVE-2026-39962?
CVE-2026-39962 is a vulnerability with a CVSS score of 9.6 (CRITICAL). 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 un...
How severe is CVE-2026-39962?
CVE-2026-39962 has been rated CRITICAL with a CVSS base score of 9.6/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-39962?
Check the references section above for vendor advisories and patch information. Affected products include: Misp Misp.