CVE-2026-34584

MEDIUM

5.4

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.

CVE Details

CVSS v3.1 Score5.4

SeverityMEDIUM

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published4/2/2026

Last Modified4/3/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-639

References

https://github.com/knadh/listmonk/commit/347f5976759232c36e571cf58b4bfe33c2794f35(security-advisories@github.com)

https://github.com/knadh/listmonk/releases/tag/v6.1.0(security-advisories@github.com)

https://github.com/knadh/listmonk/security/advisories/GHSA-85j8-5c6w-gcpv(security-advisories@github.com)

IOC Correlations

No correlations recorded

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