Is CVE-2026-34828 actively exploited?

No active exploitation of CVE-2026-34828 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-34828 be exploited remotely?

Yes. CVE-2026-34828 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-34828?

CVE-2026-34828 has a CVSS score of 7.1 (HIGH).

HOME VULNERABILITIESCVE-2026-34828

HIGH

CVE-2026-34828

CWE-613Published: April 2, 2026· Updated: Apr 3, 2026

7.1

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:1.1th

Official 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.

NVD Source

Technical Analysis

CVE-2026-34828 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 7.1.