GHSA-f4cf-9rvr-2rcx

Source

https://github.com/advisories/GHSA-f4cf-9rvr-2rcx

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/12/GHSA-f4cf-9rvr-2rcx/GHSA-f4cf-9rvr-2rcx.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-f4cf-9rvr-2rcx

Aliases

CVE-2025-67717

Published

2025-12-10T18:20:01Z

Modified

2025-12-11T16:23:02.774858Z

Severity

5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator

Summary

Zitadel Discloses the Total Number of Instance Users

Details

Summary

Zitadel's User Service discloses the total number of instance users to unauthorized users.

Impact

The ZITADEL User Service exposes the total number of users within an instance to any authenticated user, regardless of their specific permissions. While this does not leak individual user data or PII, disclosing the total user count via the totalResult field constitutes an information disclosure vulnerability that may be sensitive in certain contexts.

Affected Versions

Systems running one of the following version are affected:

4.x: 4.0.0-rc.1 through 4.7.1
3.x: 3.0.0-rc.1 through 3.4.4
2.x: 2.44.0 through 2.71.19

Patches

The vulnerability has been addressed in the latest release. The patch resolves the issue and returns the totalResult value corresponding to the number of instance users for whom the querying user has read permission.

4.x: Upgrade to >=4.7.2
3.x: Update to >=3.4.5
2.x: Update to >=3.4.5 (or checkout the workarounds section)

Workarounds

The recommended solution is to update Zitadel to a patched version.

If a version upgrade is not possible, you can enable the permissionCheckV2 feature on your instance.

Questions

If you have any questions or comments about this advisory, please email us at security@zitadel.com

Credits

This vulnerability was found by zentrust partners GmbH during a scheduled penetration test. Thank you to the analysts Martin Tschirsich, Joud Zakharia, Christopher Baumann. The full report will be made public after the complete review.

Database specific

{
    "github_reviewed": true,
    "github_reviewed_at": "2025-12-10T18:20:01Z",
    "nvd_published_at": "2025-12-11T01:16:01Z",
    "severity": "MODERATE",
    "cwe_ids": [
        "CWE-497"
    ]
}

References

Affected packages

Go / github.com/zitadel/zitadel

Package

Name: github.com/zitadel/zitadel; View open source insights on deps.dev
Purl: pkg:golang/github.com/zitadel/zitadel

Affected ranges

Type: SEMVER
Events: Introduced

4.0.0-rc.1

Fixed

4.7.2

Database specific

last_known_affected_version_range

"<= 4.7.1"

Go / github.com/zitadel/zitadel

Package

Name: github.com/zitadel/zitadel; View open source insights on deps.dev
Purl: pkg:golang/github.com/zitadel/zitadel

Affected ranges

Type: SEMVER
Events: Introduced

2.44.0

Fixed

3.4.5

Database specific

last_known_affected_version_range

"<= 3.4.4"

Go / github.com/zitadel/zitadel

Package

Name: github.com/zitadel/zitadel; View open source insights on deps.dev
Purl: pkg:golang/github.com/zitadel/zitadel

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.80.0-v2.20.0.20251210121356-826039c6208f