Description
ZITADEL is an open source identity management platform. Prior to 4.9.1 and 3.4.6, a user enumeration vulnerability has been discovered in Zitadel's login interfaces. An unauthenticated attacker can exploit this flaw to confirm the existence of valid user accounts by iterating through usernames and userIDs. This vulnerability is fixed in 4.9.1 and 3.4.6.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| zitadel | zitadel | >= 4.0.0, < 4.9.1, < 3.4.6 | — |
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 Leap 16.0 | govulncheck-vulndb | 0.0.20260723T184607-160000.1.1 | openSUSE-SU-2026:21483-1 |
| openSUSE Leap 15.6 | govulncheck-vulndb | 0.0.20260123T022811-150000.1.140.1 | SUSE-SU-2026:0292-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/zitadel/zitadel | >= 4.0.0, < 4.9.1 | 4.9.1 | GHSA-pvm5-9frx-264r |
| Go | github.com/zitadel/zitadel | < 3.4.6 | 3.4.6 | GHSA-pvm5-9frx-264r |
| Go | github.com/zitadel/zitadel | all versions | — | GO-2026-4319 |
Advisories 2
- openSUSE-SU-2026:21483-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Jul 31, 2026
- SUSE-SU-2026:0292-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Mar 23, 2026
References
- https://github.com/zitadel/zitadel/security/advisories/GHSA-pvm5-9frx-264r
- https://github.com/zitadel/zitadel/commit/b85ab69e4679b0268e2b0e9b4cd04e934af10dd2
- https://github.com/zitadel/zitadel/commit/c300d4cc6a2775ab17ddfe76492f24170f8b858d
- https://github.com/zitadel/zitadel/releases/tag/v3.4.6
- https://github.com/zitadel/zitadel/releases/tag/v4.9.1