CVE-2026-34584

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.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/knadh/listmonk/commit/347f5976759232c36e571cf58b4bfe33c2794f35	Patch
https://github.com/knadh/listmonk/releases/tag/v6.1.0	Product Release Notes
https://github.com/knadh/listmonk/security/advisories/GHSA-85j8-5c6w-gcpv	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:nadh:listmonk:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-04-02 18:16

Updated : 2026-07-24 21:10

NVD link : CVE-2026-34584

Mitre link : CVE-2026-34584

CVE.ORG link : CVE-2026-34584

JSON object : View

Products Affected

nadh

listmonk

CWE

CWE-639

Authorization Bypass Through User-Controlled Key

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