CVE-2026-76081

ZITADEL is an open source identity management platform. Prior to version 4.16.0, a bug in how ZITADEL updates permissions when multiple project roles are deleted at the same time can cause some user permissions to be missed. This issue specifically affects User Grants on Granted Projects (projects shared between different organizations), potentially allowing users to keep access rights that were supposed to be completely removed. This issue has been fully resolved in version 4.16.0. There are no configuration workarounds. Upgrading to a patched version is the only way to trigger the automatic cleanup migration. Those who cannot upgrade immediately should manually review user permissions specifically for Granted Projects where multiple roles were recently deleted.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.2 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/zitadel/zitadel/commit/9d60e83d6faa5e7e7a5339e031cdb26e0efe4d59
https://github.com/zitadel/zitadel/releases/tag/v4.16.0
https://github.com/zitadel/zitadel/security/advisories/GHSA-v859-c572-qh5p

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-14 22:16

Updated : 2026-09-16 13:42

NVD link : CVE-2026-76081

Mitre link : CVE-2026-76081

CVE.ORG link : CVE-2026-76081

JSON object : View

Products Affected

No product.

CWE

CWE-193

Off-by-one Error

{"id": "CVE-2026-76081", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-76081", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-15T19:21:36.310783Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "LOW"}, "impactScore": 4.2, "exploitabilityScore": 1.2}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "zitadel", "product": "zitadel", "versions": [{"status": "affected", "version": "< 4.16.0"}]}]}], "published": "2026-09-14T22:16:57.910", "references": [{"url": "https://github.com/zitadel/zitadel/commit/9d60e83d6faa5e7e7a5339e031cdb26e0efe4d59", "source": "security-advisories@github.com"}, {"url": "https://github.com/zitadel/zitadel/releases/tag/v4.16.0", "source": "security-advisories@github.com"}, {"url": "https://github.com/zitadel/zitadel/security/advisories/GHSA-v859-c572-qh5p", "source": "security-advisories@github.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-193"}]}], "descriptions": [{"lang": "en", "value": "ZITADEL is an open source identity management platform. Prior to version 4.16.0, a bug in how ZITADEL updates permissions when multiple project roles are deleted at the same time can cause some user permissions to be missed. This issue specifically affects User Grants on Granted Projects (projects shared between different organizations), potentially allowing users to keep access rights that were supposed to be completely removed. This issue has been fully resolved in version 4.16.0. There are no configuration workarounds. Upgrading to a patched version is the only way to trigger the automatic cleanup migration. Those who cannot upgrade immediately should manually review user permissions specifically for Granted Projects where multiple roles were recently deleted."}], "lastModified": "2026-09-16T13:42:48.413", "sourceIdentifier": "security-advisories@github.com"}