CVE-2025-64102
Zitadel is open-source identity infrastructure software. Prior to 4.6.0, 3.4.3, and 2.71.18, an attacker can perform an online brute-force attack on OTP, TOTP, and passwords. While Zitadel allows preventing online brute force attacks in scenarios like TOTP, Email OTP, or passwords using a lockout mechanism. The mechanism is not enabled by default and can cause a denial of service for the corresponding user if enabled. Additionally, the mitigation strategies were not fully implemented in the more recent resource-based APIs. This vulnerability is fixed in 4.6.0, 3.4.3, and 2.71.18.
- Score
- CVSS 3.1 9.8 Critical
- Status
- Analyzed - security-advisories@github.com
- Published
- 2025-10-29
- Last modified
- 2026-10-19
- Weaknesses
- CWE-307
Affected products
References
- https://github.com/zitadel/zitadel/security/advisories/GHSA-xrw9-r35x-x878
- https://github.com/zitadel/zitadel/commit/b8db8cdf9cc8ea13f461758aef12457f8b7d972a
