CVE-2026-35389
High · 7.5CVSS
7.5
EPSS
0.2%
Published
Apr 6, 2026
CISA due date
—
The record
Bulwark Webmail is a self-hosted webmail client for Stalwart Mail Server. Prior to 1.4.11, S/MIME signature verification did not validate the certificate trust chain (checkChain: false). Any email signed with a self-signed or untrusted certificate was displayed as having a valid signature. This vulnerability is fixed in 1.4.11.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
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