CVE-2026-34833 | bulwarkmail webmail up to 1.4.9 /api/auth/session cleartext storage (GHSA-47pm-883h-885r)

VDB-355032 · CVE-2026-34833 · GHSA-47PM-883H-885R BULWARKMAIL WEBMAIL UP TO 1.4.9 /API/AUTH/SESSION CLEARTEXT STORAGE HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.1 $0-$5k 1.31+ Summaryinfo A vulnerability was found in bulwarkmail webmail up to 1.4.9. It has been declared as problematic. The impacted element is an unknown function of the file /api/auth/session. The manipulation results in cleartext storage. This vulnerability is reported as CVE-2026-34833. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component. Detailsinfo A vulnerability classified as problematic has been found in bulwarkmail webmail up to 1.4.9. Affected is some unknown processing of the file /api/auth/session. The manipulation with an unknown input leads to a cleartext storage vulnerability. CWE is classifying the issue as CWE-312. The product stores sensitive information in cleartext within a resource that might be accessible to another control sphere. This is going to have an impact on confidentiality. CVE summarizes: 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. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-34833 since 03/30/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1555. Upgrading to version 1.4.10 eliminates this vulnerability. The upgrade is hosted for download at github.com. Productinfo Type Mail Client Software Vendor bulwarkmail Name webmail Version 1.4.0 1.4.1 1.4.2 1.4.3 1.4.4 1.4.5 1.4.6 1.4.7 1.4.8 1.4.9 Website Product: https://github.com/bulwarkmail/webmail/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 4.3 VulDB Meta Temp Score: 4.1 VulDB Base Score: 4.3 VulDB Temp Score: 4.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Cleartext storage CWE: CWE-312 / CWE-310 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: webmail 1.4.10 Timelineinfo 03/30/2026 CVE reserved 04/02/2026 +3 days VulDB entry created 04/03/2026 +0 days Advisory disclosed 04/03/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: GHSA-47pm-883h-885r Status: Confirmed CVE: CVE-2026-34833 (🔒) GCVE (CVE): GCVE-0-2026-34833 GCVE (VulDB): GCVE-100-355032 Entryinfo Created: 04/03/2026 00:06 Changes: 04/03/2026 00:06 (70) Complete: 🔍 Cache ID: 99:9A7:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸