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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.

PUBLISHED Reserved 2026-04-29 | Published 2026-04-29 | Updated 2026-04-29 | Assigner VulDB




MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
HIGH: 7.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
HIGH: 7.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
7.5AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C

Problem types

Path Traversal

Product status

1.3.0
affected

1.3.1
affected

1.3.2
affected

1.3.3
affected

1.3.4
unaffected

Timeline

2026-04-29:Advisory disclosed
2026-04-29:VulDB entry created
2026-04-29:VulDB entry last update

Credits

LittleW (VulDB User) reporter

References

vuldb.com/vuln/360107 (VDB-360107 | fatbobman mail-mcp-bridge mail_mcp_server.py path traversal) vdb-entry technical-description

vuldb.com/vuln/360107/cti (VDB-360107 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/submit/803096 (Submit #803096 | fatbobman mail-mcp-bridge d9e7d9acc2abcf9da8252d76506fc5afbc08d08e Path Traversal) third-party-advisory

github.com/fatbobman/mail-mcp-bridge/issues/2 exploit issue-tracking

github.com/...ommit/638b162b26532e32fa8d8047f638537dbdfe197a patch

github.com/fatbobman/mail-mcp-bridge/releases/tag/1.3.4 patch

github.com/fatbobman/mail-mcp-bridge/ product

cve.org (CVE-2026-7386)

nvd.nist.gov (CVE-2026-7386)

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