CVE-2026-44304

Published: May 12, 2026Modified: Jun 17, 2026Deferred

8.1

Vector

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

Exploitability: 2.8 / Impact: 5.2

Source: security-advisories@github.com (Secondary)

Description

Lemur manages TLS certificate creation. Prior to 1.9.0, Lemur's LDAP authentication module (lemur/auth/ldap.py) constructs LDAP search filters using unsanitized user input via Python string interpolation. An authenticated LDAP user can inject LDAP filter metacharacters through the username field to manipulate group membership queries and escalate their privileges to administrator. This vulnerability is fixed in 1.9.0.

Related CWEs

CWE-90

Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')

The product constructs all or part of an LDAP query using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended LDAP query when it is sent to a downstream component.

References (2)

https://github.com/Netflix/lemur/security/advisories/GHSA-3r34-vq8m-39gh

Source: security-advisories@github.com

https://github.com/Netflix/lemur/security/advisories/GHSA-3r34-vq8m-39gh

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.