Description

Bulwark Webmail is a self-hosted webmail client for Stalwart Mail Server. Prior to version 1.4.10, the verifyIdentity() function contained logic that returned true if no session cookies were present. This allowed unauthenticated attackers to bypass security checks and access/modify user settings via the /api/settings endpoint by providing arbitrary headers. This issue has been patched in version 1.4.10.

INFO

Published Date :

2026-04-02T19:11:54.448Z

Last Modified :

2026-04-02T19:11:54.448Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-34834 vulnerability.

No data.

REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-34834.

URL Resource
https://github.com/bulwarkmail/webmail/releases/tag/1.4.10 cve-icon cve-icon
https://github.com/bulwarkmail/webmail/security/advisories/GHSA-4356-876g-rfmh cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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Privileges Required
User Interaction
VS Confidentiality
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SS Confidentiality
SS Integrity
SS Availability