🛡️ CVE-2026-39962 — misp

🔴 CVSS 9.6 — Critical ✅ No Known Exploit CWE-90 NVD
9.6
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2026-39962 is classified as CWE-90: LDAP Injection. Input is placed into an LDAP query without neutralisation, allowing the directory lookup to be rewritten.

Affected software

CVE-2026-39962 is recorded against 1 package.

  • misp (fixed in 2.5.36)

Timeline and source

Published on 9 April 2026 and last revised on 22 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com
github.com
github.com
github.com

Details

Severity CRITICAL
CVSS Score 9.6
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CWE CWE-90
Public Exploit ✅ No
Source NVD
Published 2026-04-09
Updated 2026-08-11
Modified 2026-06-22

Affected Packages

Software From version Fixed in
misp — 2.5.36

Similar Threats

Exploit Protection

Are you running misp?

CVE-2026-39962 carries CVSS 9.6 Critical rating. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

Check My Site For CVE-2026-39962 →

No credit card required  ·  Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.