CVE-2026-7386: fatbobman mail-mcp-bridge mail_mcp_server.py path traversal

Severity: high (CVSS 7.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-29 · updated 2026-10-26
Weakness: CWE-22

Description

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.

Affected products

fatbobman mail-mcp-bridge: 1.3.0, 1.3.1, 1.3.2, 1.3.3

References

https://github.com/fatbobman/mail-mcp-bridge/
https://github.com/fatbobman/mail-mcp-bridge/commit/638b162b26532e32fa8d8047f638537dbdfe197a
https://github.com/fatbobman/mail-mcp-bridge/issues/2
https://github.com/fatbobman/mail-mcp-bridge/releases/tag/1.3.4
https://vuldb.com/submit/803096
https://vuldb.com/vuln/360107
https://vuldb.com/vuln/360107/cti

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