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.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| github.com/zitadel/zitadel/v2(Go) | 0 | 2.71.18 | N/A |
| github.com/zitadel/zitadel(Go) | 0 | 1.80.0-v2.20.0.20251029090735-b8db8cdf9cc8 | N/A |
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