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TI-2026-32571 Aliases CVE-2026-44671GHSA-rxvx-hhpj-q6px

ZITADEL: LDAP Filter Injection in Login Flow

Priority LOW 39CWE-90Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00479 41st percentileScored 2026-11-07
Fix Fixed zitadel (zitadel): 3.4.10, 4.15.0github.com/zitadel/zitadel (Go): 4.15.0, 3.4.10

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
zitadelzitadel2.71.11 to before 3.4.10; 4.0.0 to before 4.15.03.4.10, 4.15.0Patch availableCNA
—github.com/zitadel/zitadel (Go)4.0.0 to before 4.15.04.15.0Patch availableGHSA-rxvx-hhpj-q6px
—github.com/zitadel/zitadel (Go)2.71.11 – 2.71.19—No fix listedGHSA-rxvx-hhpj-q6px
—github.com/zitadel/zitadel (Go)3.1.0 to before 3.4.103.4.10Patch availableGHSA-rxvx-hhpj-q6px
  • zitadel Vendorzitadel Affected 2.71.11 to before 3.4.10; 4.0.0 to before 4.15.0 Fixed in 3.4.10, 4.15.0 Patch available CNA
  • github.com/zitadel/zitadel (Go) Vendor— Affected 4.0.0 to before 4.15.0 Fixed in 4.15.0 Patch available GHSA-rxvx-hhpj-q6px
  • github.com/zitadel/zitadel (Go) Vendor— Affected 2.71.11 – 2.71.19 Fixed in — No fix listed GHSA-rxvx-hhpj-q6px
  • github.com/zitadel/zitadel (Go) Vendor— Affected 3.1.0 to before 3.4.10 Fixed in 3.4.10 Patch available GHSA-rxvx-hhpj-q6px

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:zitadel:zitadel:*:*:*:*:*:*:*:*2.71.11 to before 3.4.10; 4.0.0 to before 4.15.0Vulnerablezitadel
  • cpe:2.3:a:zitadel:zitadel:*:*:*:*:*:*:*:* Versions 2.71.11 to before 3.4.10; 4.0.0 to before 4.15.0 Vulnerable ·zitadel

Remediation

  • Fix · CNA zitadel (zitadel) Fixed in 3.4.10, 4.15.0
  • Fix · GHSA-rxvx-hhpj-q6px github.com/zitadel/zitadel (Go) Fixed in 4.15.0 Advisory →
  • Fix · GHSA-rxvx-hhpj-q6px github.com/zitadel/zitadel (Go) Fixed in 3.4.10 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-44671
  2. 2026-10-03 Alias added: GHSA-rxvx-hhpj-q6px
  3. 2026-10-25 Priority changed: MEDIUM → LOW

References

Patch 1

Advisory 1

Other 3

  • TI-2024-26607 ZITADEL Vulnerable to Session Information Leakage CVSS 3.1MEDIUM 6.5
  • TI-2025-41253 ZITADEL Vulnerable to Unauthenticated Full-Read SSRF via V2 Login CVSS 3.1CRITICAL 9.3
  • TI-2025-39554 Zitadel Bypass Second Authentication Factor CVSS 4.0HIGH 8.7
  • TI-2024-33224 Zitadel User Registration Bypass Vulnerability CVSS 3.1HIGH 7.5
  • TI-2024-31388 Service Users Deactivation not Working in Zitadel CVSS 3.1HIGH 8.1
  • TI-2026-23310 ZITADEL: Bypassing Zitadel Login Behavior and Security Policy in Login V2 CVSS 3.1HIGH 8.2
See all 46 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences