CVE-2026-34828

HighCVSS 7.1/10Last modified Jul 24, 2026

Description

listmonk is a standalone, self-hosted, newsletter and mailing list manager. From version 4.1.0 to before version 6.1.0, a session management vulnerability allows previously issued authenticated sessions to remain valid after sensitive account security changes, specifically password reset and password change. As a result, an attacker who has already obtained a valid session cookie can retain access to the account even after the victim changes or resets their password. This weakens account recovery and session security guarantees. This issue has been patched in version 6.1.0.

Metrics

CVSS 3.1 7.1/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Apr 2, 2026
Last modified
Jul 24, 2026
NVD status
Analyzed

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CVE-2026-34828: High severity, CVSS 7.1 | Vulnix