CVE-2026-76081Network attack vectorHinoki check available

Persistent access via skipped adjacent role removals

Published Sep 14, 2026 · Updated Sep 14, 2026

Improper authorization in ZITADEL before 4.16.0 allows remote authenticated users to retain Granted Project access after role deletion. During cross-organization cleanup, the role-removal loop skips adjacent entries when administrators delete two or more project roles together. The flaw is limited to User Grants on Granted Projects; retained permissions can preserve administrative or other access that deletion was meant to revoke.

CVSS severity5.5
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Improper authorization in ZITADEL before 4.16.0 allows remote authenticated users to retain Granted Project access after role deletion. During cross-organization cleanup, the role-removal loop skips adjacent entries when administrators delete two or more project roles together. The flaw is limited to User Grants on Granted Projects; retained permissions can preserve administrative or other access that deletion was meant to revoke.

The record

CVE
CVE-2026-76081
Published
Sep 14, 2026
Updated
Sep 14, 2026
Vendor
ZITADEL
Product
ZITADEL
Classifications
CWE-193, T1078
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Sep 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 4.16.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

ZITADEL · ZITADELversion=< 4.16.0

Published CVSS scores

5.5ZITADELCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-193Off-by-one Error
T1078Valid Accounts

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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