CVE-2026-34584
MEDIUM
NVD
CVSS Score
5.4
Severity
MEDIUM
Published
Apr 02, 2026
Vendor
unknown
Description
listmonk is a standalone, self-hosted, newsletter and mailing list manager. From version 4.1.0 to before version 6.1.0, bugs in list permission checks allows users in a multi-user environment to access to lists (which they don't have access to) under different scenarios. This only affects multi-user environments with untrusted users. This issue has been patched in version 6.1.0.