CVE-2026-44671

HIGH EPSS 37.8%
Published May 14, 20261mo ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published May 14, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
37.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-90

Affected Products 2

VendorProductVersionRange
zitadelzitadel*≥2.71.11  –  <3.4.10
zitadelzitadel*≥4.0.0  –  <4.15.0

References 3

  • github.com https://github.com/zitadel/zitadel/releases/tag/v3.4.10
    ProductRelease Notes
  • github.com https://github.com/zitadel/zitadel/releases/tag/v4.15.0
    ProductRelease Notes
  • github.com https://github.com/zitadel/zitadel/security/advisories/GHSA-rxvx-hhpj-q6px
    MitigationPatchVendor Advisory

Remediation

  • github.com https://github.com/zitadel/zitadel/security/advisories/GHSA-rxvx-hhpj-q6px
    MitigationPatchVendor Advisory