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CVE-2026-34833

HIGH CVSS 4.0: 8.7 EPSS 0.02%
Updated Apr 09, 2026
Bulwarkmail
Parameter Value
CVSS 8.7 (HIGH)
Affected Versions before 1.4.10
Fixed In 1.4.10
Type CWE-312
Vendor Bulwarkmail
Public PoC No

Bulwark Webmail is a self-hosted webmail client for Stalwart Mail Server. Prior to version 1.4.10, the GET /api/auth/session endpoint previously included the user's plaintext password in the JSON response. This exposed credentials to browser logs, local caches, and network proxie.

This issue has been patched in version 1.4.10.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v4.0

Weakness Type (CWE)

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Bulwarkmail Webmail
cpe:2.3:a:bulwarkmail:webmail:*:*:*:*:*:*:*:*
1.4.10