CVE-2026-34833

Bulwark Webmail: Information Exposure: password returned in /api/auth/session

CVSS 8.7 HIGHEPSS 0.2%CWE-312

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.7EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

02 Apr 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Affected products

bulwarkmail · webmail

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References

https://github.com/bulwarkmail/webmail/releases/tag/1.4.10 https://github.com/bulwarkmail/webmail/security/advisories/GHSA-47pm-883h-885r