> CVE-2026-76081 [MEDIUM]

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PUBLISHED
2026-09-14 22:16
MODIFIED
2026-09-14 22:16
CVSS_SCORE V3
5.5
EPSS (Prob. Exploit)
0.40%
Top 67.7%
DATA SOURCES:
NVD đź”— 2026-09-14 CWE MITRE đź”— 2026-10-01 FIRST EPSS đź”— 2026-10-18 GITHUB đź”— 2026-09-21 OSV đź”— 2026-10-26

> DESCRIPTION

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.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N
EXPLOITABILITY
1.2
IMPACT
4.2

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
High (H)
Authentifié avec privilèges administratifs
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
Low (L)
Divulgation limitée d'informations
I (Impact Intégrité)
Integrity Impact
High (H)
Modification totale des données possible
A (Impact Disponibilité)
Availability Impact
None (N)
Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité
Low
Divulgation limitée d'informations
Intégrité
High
Modification totale des données possible
Disponibilité
None
Aucune interruption de service

> WEAKNESSES

CWE-193

> CWE DETAILED DESCRIPTIONS

CWE-193: Off-by-one Error - A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value.

> GITHUB SECURITY ADVISORY

GHSA-v859-c572-qh5p MODERATE

ZITADEL: Improper Role Revocation on Granted Projects during Multiple Role Deletions

AFFECTED PACKAGES:
GO / github.com/zitadel/zitadel
< 4.16.0
Fixed in: 4.16.0

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

ZITADEL: Improper Role Revocation on Granted Projects during Multiple Role Deletions

AFFECTED PACKAGES:
Unknown / Unknown
949 versions affected
ALIASES:
GHSA-v859-c572-qh5p, GO-2026-6473

> HISTORIQUE DES MODIFICATIONS

Première apparition
14/09/2026 22:16
Source: NVD
📊 ENRICHISSEMENT 01/10/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-193: Off-by-one Error - A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value.
Total des modifications: 1 Dernière mise à jour: 3 weeks ago

> REFERENCES

https://github.com/zitadel/zitadel/commit/9d60e83d6faa5e7e7a5339e031cdb26e0efe4d...
https://github.com/zitadel/zitadel/releases/tag/v4.16.0
https://github.com/zitadel/zitadel/security/advisories/GHSA-v859-c572-qh5p
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