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CVSS 7.3 · HIGH

CVE-2026-7386

A flaw has been found in fatbobman mail-mcp-bridge up to 1.3.3. Affected is an unknown function of the file src/mail_mcp_server.py. Executing a manipulation of the argument message_ids can lead to path traversal. The attack can be executed remotely. The exploit has been published and may be used. Upgrading to version 1.3.4 is able to address this issue. This patch is called 638b162b26532e32fa8d8047f638537dbdfe197a. Upgrading the affected component is recommended.

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Análisis

This vulnerability affects a specific bridge tool for the Model Context Protocol (MCP) used to integrate mail with AI models. While the path traversal vulnerability is severe and an exploit is public, the software is a niche utility with a small user base and does not impact core development stacks or infrastructure.

Severidad

Puntaje: 7.3(HIGH)
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
AV: NETWORK
AC: LOW
PR: NONE
UI: NONE
S: UNCHANGED
C: LOW
I: LOW
A: LOW
Tipo de falla (CWE): CWE-22

EPSS

Probabilidad de explotación (próx. 30 días): 0.0007 (0.1%)
Percentil: 20.4%
EPSS: 2026-05-06

Descripción técnica

A flaw has been found in fatbobman mail-mcp-bridge up to 1.3.3. Affected is an unknown function of the file src/mail_mcp_server.py. Executing a manipulation of the argument message_ids can lead to path traversal. The attack can be executed remotely. The exploit has been published and may be used. Upgrading to version 1.3.4 is able to address this issue. This patch is called 638b162b26532e32fa8d8047f638537dbdfe197a. Upgrading the affected component is recommended.

Publicada: 29/4/2026, 16:16:29
Última modificación: 29/4/2026, 21:16:21

Referencias

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