7.5

CVE-2026-44671

ZITADEL: LDAP Filter Injection in Login Flow

ZITADEL is an open source identity management platform. From 2.71.11 to before 3.4.10 and 4.15.0, a vulnerability was discovered in Zitadel's LDAP identity provider implementation, which fails to properly escape user-provided usernames before incorporating them into LDAP search filters. This allows unauthenticated attackers to perform LDAP Filter Injection during the login process. While this vulnerability does not allow for a full authentication bypass, an attacker can use LDAP metacharacters (such as *, (, )) to perform blind LDAP injection. By observing the different failure (or success) responses, an attacker can systematically enumerate valid usernames and extract sensitive attribute data from the connected LDAP directory. This vulnerability is fixed in 3.4.10 and 4.15.0.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Zitadel ≫ Zitadel Version >= 2.71.11 < 3.4.10
Zitadel ≫ Zitadel Version >= 4.0.0 < 4.15.0
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.48% 0.375
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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.

https://github.com/zitadel/zitadel/security/advisories/GHSA-rxvx-hhpj-q6px
Patch
Vendor Advisory
Mitigation
https://github.com/zitadel/zitadel/releases/tag/v3.4.10
Product
Release Notes
https://github.com/zitadel/zitadel/releases/tag/v4.15.0
Product
Release Notes