high7.1
CVE-2026-34828
listmonk's active sessions remain valid after password reset and password change
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/knadh/listmonk | >= 1.1.1-0.20241028090858-319053dd7a90, < 1.1.1-0.20260329113754-1b5e8d38c778 | 1.1.1-0.20260329113754-1b5e8d38c778 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Nadh | Listmonk | from 4.1.0 before 6.1.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-h5j9-cvrw-v5qh
- https://github.com/knadh/listmonk/security/advisories/GHSA-h5j9-cvrw-v5qh
- https://nvd.nist.gov/vuln/detail/CVE-2026-34828
- https://github.com/knadh/listmonk/commit/db82035d619348949512dafdaf60c86037cafc9e
- https://github.com/knadh/listmonk/releases/tag/v6.1.0