Industrial
CVE-2026-22689
MEDIUM
GHSA-524m-q5m7-79mm
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Primary rating from GitHub Advisory.
CVSS VectorGitHub Advisory
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Lifecycle Timeline
4DescriptionGitHub Advisory
Mailpit is an email testing tool and API for developers. Prior to version 1.28.2, the Mailpit WebSocket server is configured to accept connections from any origin. This lack of Origin header validation introduces a Cross-Site WebSocket Hijacking (CSWSH) vulnerability. An attacker can host a malicious website that, when visited by a developer running Mailpit locally, establishes a WebSocket connection to the victim's Mailpit instance (default ws://localhost:8025). This allows the attacker to intercept sensitive data such as email contents, headers, and server statistics in real-time. This issue has been patched in version 1.28.2.
AnalysisAI
Mailpit versions up to 1.28.2 contains a vulnerability that allows attackers to intercept sensitive data such as email contents, headers, and server statistics (CVSS 6.5).
Technical ContextAI
affects Mailpit. Mailpit is an email testing tool and API for developers. Prior to version 1.28.2, the Mailpit WebSocket server is configured to accept connections from any origin. This lack of Origin header validation introduces a Cross-Site WebSocket Hijacking (CSWSH) vulnerability. An attacker can host a malicious website that, when visited by a developer running Mailpit locally, establishes a WebSocket connection to the victim's Mailpit instance (default ws://localhost:8025). This allows the attacker to inte
RemediationAI
A vendor patch is available — apply it immediately. Fixed in version 1.28.2.. Restrict network access to the affected service where possible.
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View allVendor StatusVendor
SUSE
Severity: MediumShare
External POC / Exploit Code
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