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TI-2026-06489 Aliases CVE-2026-7386GHSA-2gfj-fr43-4735

fatbobman mail-mcp-bridge mail_mcp_server.py path traversal

Priority HIGH 70CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
Low · Low · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00429 37th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed mail-mcp-bridge (fatbobman): 1.3.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
fatbobmanmail-mcp-bridge1.3.0; 1.3.1; 1.3.2; 1.3.31.3.4Patch availableCNA
  • mail-mcp-bridge Vendorfatbobman Affected 1.3.0; 1.3.1; 1.3.2; 1.3.3 Fixed in 1.3.4 Patch available CNA

Remediation

  • Fix · CNA mail-mcp-bridge (fatbobman) Fixed in 1.3.4

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-7386
  2. 2026-10-03 Alias added: GHSA-2gfj-fr43-4735

References

Exploit 1

Patch 2

Other 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences