Is CVE-2026-34833 actively exploited?

CVE-2026-34833 has no public evidence of in-the-wild exploitation as of 2026-04-09.

What is the CVSS score for CVE-2026-34833?

CVE-2026-34833 has a CVSS score of 8.7 (HIGH severity). Vector: 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X.

How do I patch CVE-2026-34833?

Patch guidance is available from bulwarkmail security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-34833.

Which products are affected by CVE-2026-34833?

1 product: bulwarkmail webmail.

Fix CVE-2026-34833 - HIGH bulwarkmail webmail

Description

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 Metrics

Vector: 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Confidentiality: undefined
Integrity: undefined
Availability: undefined
Weaknesses: CWE-312

Metadata

Primary Vendor: BULWARKMAIL
Published: 4/2/2026
Last Modified: 4/9/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2026-34833

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary