ZITADEL: Account Takeover Due to Improper Instance Validation in V2 Login
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-601.
Summary
ZITADEL is an open source identity management platform. From version 4.0.0-rc.1 to 4.7.0, a potential vulnerability exists in ZITADEL's password reset mechanism in login V2. 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. This issue has been patched in version 4.7.1.
Why it matters now
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| zitadel | zitadel | 4.0.0-rc.1 to before 4.7.1 | 4.7.1 | Patch available | CNA |
| — | github.com/zitadel/zitadel (Go) | before 1.80.0-v2.20.0.20251208091519-4c879b47334e | 1.80.0-v2.20.0.20251208091519-4c879b47334e | Patch available | GHSA-pfrf-9r5f-73f5 |
| — | github.com/zitadel/zitadel (Go) | 1.83.4 – 1.87.5 | — | No fix listed | GHSA-pfrf-9r5f-73f5 |
| — | github.com/zitadel/zitadel (Go) | 4.0.0-rc.1 to before 4.7.1 | 4.7.1 | Patch available | GHSA-pfrf-9r5f-73f5 |
| — | github.com/zitadel/zitadel/v2 (Go) | before 1.80.0-v2.20.0.20251208091519-4c879b47334e | 1.80.0-v2.20.0.20251208091519-4c879b47334e | Patch available | GHSA-pfrf-9r5f-73f5 |
- zitadel Vendorzitadel Affected 4.0.0-rc.1 to before 4.7.1 Fixed in 4.7.1 Patch available CNA
- github.com/zitadel/zitadel (Go) Vendor— Affected before 1.80.0-v2.20.0.20251208091519-4c879b47334e Fixed in 1.80.0-v2.20.0.20251208091519-4c879b47334e Patch available GHSA-pfrf-9r5f-73f5
- github.com/zitadel/zitadel (Go) Vendor— Affected 1.83.4 – 1.87.5 Fixed in — No fix listed GHSA-pfrf-9r5f-73f5
- github.com/zitadel/zitadel (Go) Vendor— Affected 4.0.0-rc.1 to before 4.7.1 Fixed in 4.7.1 Patch available GHSA-pfrf-9r5f-73f5
- github.com/zitadel/zitadel/v2 (Go) Vendor— Affected before 1.80.0-v2.20.0.20251208091519-4c879b47334e Fixed in 1.80.0-v2.20.0.20251208091519-4c879b47334e Patch available GHSA-pfrf-9r5f-73f5
Remediation
- Fix · CNA zitadel (zitadel) Fixed in 4.7.1
- Fix · GHSA-pfrf-9r5f-73f5 github.com/zitadel/zitadel (Go) Fixed in 1.80.0-v2.20.0.20251208091519-4c879b47334e Advisory →
- Fix · GHSA-pfrf-9r5f-73f5 github.com/zitadel/zitadel (Go) Fixed in 4.7.1 Advisory →
- Fix · GHSA-pfrf-9r5f-73f5 github.com/zitadel/zitadel/v2 (Go) Fixed in 1.80.0-v2.20.0.20251208091519-4c879b47334e Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-29067
- 2026-10-03 Alias added: GHSA-pfrf-9r5f-73f5
References
More Zitadel vulnerabilities
- 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
Sources
- CVE-2026-29067 · CVE Program
- CVE-2026-29067 · NVD
- FIRST EPSS
- GHSA-pfrf-9r5f-73f5 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences