CVE-2026-35391 | BDVDB-2026-325137 Detail

Description#

Bulwark Webmail is a self-hosted webmail client for Stalwart Mail Server. Prior to 1.4.11, the getClientIP() function in lib/admin/session.ts trusted the first (leftmost) entry of the X-Forwarded-For header, which is fully controlled by the client. An attacker could forge their source IP address to bypass IP-based rate limiting (enabling brute-force attacks against the admin login) or forge audit log entries (making malicious activity appear to originate from arbitrary IP addresses). This vulnerability is fixed in 1.4.11.

Impact#

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Exploit#

History#

1. Version 12026-04-06Record published in the CVE List.
2. Version 22026-04-07Most recent update recorded in the CVE List.