CVE-2026-34828 Details
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.
A session management vulnerability exists in Listmonk versions 4.1.0 prior to 6.1.0, allowing authenticated sessions to remain valid after critical account security changes, such as password resets and changes. This issue enables an attacker with a valid session cookie to maintain access to the account, undermining the effectiveness of password recovery and session security. The vulnerability has been addressed in version 6.1.0.
Users can upgrade to Listmonk version 6.1.0 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 3, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/knadh/listmonk/commit/db82035d619348949512dafdaf60c86037cafc9e | [email protected] | Patch |
| https://github.com/knadh/listmonk/releases/tag/v6.1.0 | [email protected] | ProductRelease Notes |
| https://github.com/knadh/listmonk/security/advisories/GHSA-h5j9-cvrw-v5qh | [email protected] | ExploitVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-613 | Insufficient Session Expiration | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| nadh listmonk | >= 4.1.0, < 6.1.0 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 24, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 15, 2026 | Initial Analysis | [email protected] |
| Apr 2, 2026 | New CVE Received | [email protected] |