CVE-2026-39962Critical· 9.6▾ Midnight

MISP is an open source threat intelligence and sharing platform

▾ Midnight zone — Critical, or high with PoC / in-the-wild

Depth score53/ 100 · Moderate

impact 52.8 · likelihood 0.1 · exploitation 0

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Proof of concept

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Published

Apr 9, 2026

Updated

Jun 22, 2026

CVSS

9.6

Vendor

—

Product

—

CWE

CWE-90

Depth score

53 · Moderate

EPSS

0.34% · p28

Platforms

—

Source

NVD

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

EPSS history

Exploit-prediction probability, daily snapshots since Jul 4.

0.3% → 0.3%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

3 events · 86 days

Apr 9, 2026Published
Disclosed via NVD
Jun 22, 2026Record revised
Last analysed / modified upstream
Jul 4, 2026EPSS first tracked
0.3%

CWE-90 #nvd

Full technical detail▾

Overview

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.

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

References

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#nvd

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