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TI-2025-39552 Aliases CVE-2025-64101GHSA-mwmh-7px9-4c23

ZITADEL Vulnerable to Account Takeover via Malicious Forwarded Header Injection

Priority MEDIUM 40CWE-601Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Spoofing, Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-601 and CWE-640.

Summary

Zitadel is open-source identity infrastructure software. Prior to 4.6.0, 3.4.3, and 2.71.18, a potential vulnerability exists in ZITADEL's password reset mechanism. ZITADEL utilizes the Forwarded or X-Forwarded-Host header from incoming requests to construct the URL for the password reset confirmation link. This link, containing a secret code, is then emailed to the user. If an attacker can manipulate these headers (e.g., via host header injection), they could cause ZITADEL to generate a password reset link pointing to a malicious domain controlled by the attacker. If the user clicks this manipulated link in the email, the secret reset code embedded in the URL can be captured by the attacker. This captured code could then be used to reset the user's password and gain unauthorized access to their account. It's important to note that this specific attack vector is mitigated for accounts that have Multi-Factor Authentication (MFA) or Passwordless authentication enabled. This vulnerability is fixed in 4.6.0, 3.4.3, and 2.71.18.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00363 30th percentileScored 2026-11-07
Fix Fixed zitadel (zitadel): 4.6.0, 3.4.3, 2.71.18github.com/zitadel/zitadel/v2 (Go): 2.71.18, 1.80.0-v2.20.0.20251029090537-72a5c33e6ac3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
zitadelzitadel4.0.0-rc.1 to before 4.6.0; 3.0.0-rc.1 to before 3.4.3; 2.0.0 to before 2.71.184.6.0, 3.4.3, 2.71.18Patch availableCNA
—github.com/zitadel/zitadel/v2 (Go)2.0.0 to before 2.71.182.71.18Patch availableGHSA-mwmh-7px9-4c23
—github.com/zitadel/zitadel/v2 (Go)before 1.80.0-v2.20.0.20251029090537-72a5c33e6ac31.80.0-v2.20.0.20251029090537-72a5c33e6ac3Patch availableGHSA-mwmh-7px9-4c23
  • zitadel Vendorzitadel Affected 4.0.0-rc.1 to before 4.6.0; 3.0.0-rc.1 to before 3.4.3; 2.0.0 to before 2.71.18 Fixed in 4.6.0, 3.4.3, 2.71.18 Patch available CNA
  • github.com/zitadel/zitadel/v2 (Go) Vendor— Affected 2.0.0 to before 2.71.18 Fixed in 2.71.18 Patch available GHSA-mwmh-7px9-4c23
  • github.com/zitadel/zitadel/v2 (Go) Vendor— Affected before 1.80.0-v2.20.0.20251029090537-72a5c33e6ac3 Fixed in 1.80.0-v2.20.0.20251029090537-72a5c33e6ac3 Patch available GHSA-mwmh-7px9-4c23

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:zitadel:zitadel:*:*:*:*:*:*:*:*before 2.71.18; 3.0.0 to before 3.4.3; 4.0.0 to before 4.6.0Vulnerablezitadel
  • cpe:2.3:a:zitadel:zitadel:*:*:*:*:*:*:*:* Versions before 2.71.18; 3.0.0 to before 3.4.3; 4.0.0 to before 4.6.0 Vulnerable ·zitadel

Remediation

  • Fix · CNA zitadel (zitadel) Fixed in 4.6.0, 3.4.3, 2.71.18
  • Fix · GHSA-mwmh-7px9-4c23 github.com/zitadel/zitadel/v2 (Go) Fixed in 2.71.18 Advisory →
  • Fix · GHSA-mwmh-7px9-4c23 github.com/zitadel/zitadel/v2 (Go) Fixed in 1.80.0-v2.20.0.20251029090537-72a5c33e6ac3 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-64101
  2. 2026-10-03 Alias added: GHSA-mwmh-7px9-4c23

References

Patch 1

Advisory 2

Other 2

  • 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