ZITADEL race condition in lockout policy execution
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.
Summary
ZITADEL provides identity infrastructure. ZITADEL provides administrators the possibility to define a `Lockout Policy` with a maximum amount of failed password check attempts. On every failed password check, the amount of failed checks is compared against the configured maximum. Exceeding the limit, will lock the user and prevent further authentication. In the affected implementation it was possible for an attacker to start multiple parallel password checks, giving him the possibility to try out more combinations than configured in the `Lockout Policy`. This vulnerability has been patched in versions 2.40.5 and 2.38.3.
Why it matters now
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| zitadel | zitadel | 2.39.0 to before 2.40.5; before 2.38.3 | 2.40.5, 2.38.3 | Patch available | CNA |
| — | github.com/zitadel/zitadel (Go) | 2.39.0 to before 2.40.5 | 2.40.5 | Patch available | GHSA-7h8m-vrxx-vr4m |
| — | github.com/zitadel/zitadel (Go) | before 2.38.3 | 2.38.3 | Patch available | GHSA-7h8m-vrxx-vr4m |
- zitadel Vendorzitadel Affected 2.39.0 to before 2.40.5; before 2.38.3 Fixed in 2.40.5, 2.38.3 Patch available CNA
- github.com/zitadel/zitadel (Go) Vendor— Affected 2.39.0 to before 2.40.5 Fixed in 2.40.5 Patch available GHSA-7h8m-vrxx-vr4m
- github.com/zitadel/zitadel (Go) Vendor— Affected before 2.38.3 Fixed in 2.38.3 Patch available GHSA-7h8m-vrxx-vr4m
Remediation
- Fix · CNA zitadel (zitadel) Fixed in 2.40.5, 2.38.3
- Fix · GHSA-7h8m-vrxx-vr4m github.com/zitadel/zitadel (Go) Fixed in 2.40.5 Advisory →
- Fix · GHSA-7h8m-vrxx-vr4m github.com/zitadel/zitadel (Go) Fixed in 2.38.3 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2023-47111
- 2026-10-03 Alias added: GHSA-7h8m-vrxx-vr4m
References
Advisory 2
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-2023-47111 · CVE Program
- CVE-2023-47111 · NVD
- FIRST EPSS
- GHSA-7h8m-vrxx-vr4m · 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