Skip to content
OpenAdvisories
Low · 2.3 CVE-2026-55670 EUVD-2026-42977GHSA-6x8v-2fq5-2229GO-2026-5197

ZITADEL: Cross-Tenant User Leakage via Recycled Identifiers

Published Jul 10, 2026 · Updated Jul 10, 2026 · Assigned by GitHub_M

Description

ZITADEL is an open source identity management platform. Prior to 4.15.1, ZITADEL's event store validation can retain the original resource owner for a deleted user identifier, causing a later user recreated with the same identifier in another organization to be provisioned under the original organization and exposed to that organization's administrator. This issue is fixed in version 4.15.2.

Affected products

VendorProductAffectedFixed
zitadel zitadel < 4.15.2 —

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.

ReleasePackageFixed inAdvisory
openSUSE Leap 16.0 govulncheck-vulndb 0.0.20260723T184607-160000.1.1 openSUSE-SU-2026:21483-1

Affected packages

EcosystemPackageAffectedFixedRecord
Go github.com/zitadel/zitadel < 1.80.0-v2.20.0.20260615092437-6082e59d47c1 1.80.0-v2.20.0.20260615092437-6082e59d47c1 GHSA-6x8v-2fq5-2229

Advisories 1

References