Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| zitadel | zitadel | >= 4.0.0-rc.1, < 4.6.0, >= 3.0.0-rc.1, < 3.4.3, >= 2.0.0, < 2.71.18 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | govulncheck-vulndb | 0.0.20251105T184115-1.1 | openSUSE-SU-2025:15710-1 |
| openSUSE Leap 16.0 | govulncheck-vulndb | 0.0.20260723T184607-160000.1.1 | openSUSE-SU-2026:21483-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/zitadel/zitadel | < 1.80.0-v2.20.0.20251029090735-b8db8cdf9cc8 | 1.80.0-v2.20.0.20251029090735-b8db8cdf9cc8 | GHSA-xrw9-r35x-x878 |
| Go | github.com/zitadel/zitadel | all versions | — | GO-2025-4085 |
| Go | github.com/zitadel/zitadel/v2 | < 2.71.18 | 2.71.18 | GHSA-xrw9-r35x-x878 |
Advisories 2
- openSUSE-SU-2026:21483-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Jul 31, 2026
- openSUSE-SU-2025:15710-1 govulncheck-vulndb-0.0.20251105T184115-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026