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Vulnerability record · CVE-2025-23208 · published 17 January 2025

CVE-2025-23208: Zotregistry zot improper privilege management vulnerability

Zotregistry · Zot

zot is a production-ready vendor-neutral OCI image registry. The group data stored for users in the boltdb database (meta.db) is an append-list so group revocations/removals are ignored in the API. SetUserGroups is alled on login, but instead of replacing the group memberships, they are appended. This may be due to some conflict with the group definitions in the config file, but that wasn't obvious to me if it were the case. Any Zot configuration that relies on group-based authorization will not respect group remove/revocation by an IdP. This issue has been addressed in version 2.1.2. All users are advised to upgrade. There are no known workarounds for this vulnerability.

5.3 CVSS 3.1 Medium EPSS 0.41% · top 67.4% CWE-269 · Improper privilege management
5.3CVSS 3.1 base score
0.41%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

zot is a production-ready vendor-neutral OCI image registry. The group data stored for users in the boltdb database (meta.db) is an append-list so group revocations/removals are ignored in the API. SetUserGroups is alled on login, but instead of replacing the group memberships, they are appended. This may be due to some conflict with the group definitions in the config file, but that wasn't obvious to me if it were the case. Any Zot configuration that relies on group-based authorization will not respect group remove/revocation by an IdP. This issue has been addressed in version 2.1.2. All users are advised to upgrade. There are no known workarounds for this vulnerability.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/project-zot/zot/blob/5e30fec65c49e3139907e2819ccb39b2e3bd784e/pkg/meta/boltdb/boltdb.go#L1665 Product
https://github.com/project-zot/zot/commit/002ac62d8a15bf0cba010b3ba7bde86f9837b613 Patch
https://github.com/project-zot/zot/security/advisories/GHSA-c9p4-xwr9-rfhx ExploitVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2025-23208), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.