CVE-2026-34584
Medium · 5.4CVSS
5.4
EPSS
0.3%
Published
Apr 2, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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