CVE-2026-10277

j3k0 mcp-google-workspace MCP Gmail Tool gmail.ts saveToDisk access control

State: Published
Severity: 5.3 Medium
Published: Jun 1, 2026
Updated: Jun 1, 2026
Reserved: May 31, 2026

Description

A vulnerability was found in j3k0 mcp-google-workspace up to 831790e7d5c2663325733d9f5579cc339a267c4c. This issue affects the function saveToDisk of the file src/tools/gmail.ts of the component MCP Gmail Tool. Performing a manipulation results in improper access controls. It is possible to initiate the attack remotely. The exploit has been made public and could be used. This product is using a rolling release to provide continious delivery. Therefore, no version details for affected nor updated releases are available. The patch is named 89c091ecf8b9f9c7291d1af0b1966e271f86551c. It is suggested to install a patch to address this issue.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P	VulDB
3.1	6.3 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C	VulDB
3.0	6.3 Medium	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C	VulDB
2.0	6.5 Medium	AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C	VulDB

Weaknesses

CWE-284 Improper Access Controls
CWE-266 Incorrect Privilege Assignment

Affected Products

Product	Versions
mcp-google-workspacej3k0	831790e7d5c2663325733d9f5579cc339a267c4cAffected

References

VDB-367570 | j3k0 mcp-google-workspace MCP Gmail Tool gmail.ts saveToDisk access controlvdb-entrytechnical-description
VDB-367570 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
CVE-2026-10277 | CVE Analysis and Reportthird-party-advisory
Submit #825416 | j3k0 mcp-google-workspace 1.0.0 Arbitrary File Writethird-party-advisory
https://github.com/j3k0/mcp-google-workspace/issues/19exploitissue-tracking
https://github.com/j3k0/mcp-google-workspace/pull/22issue-trackingpatch
https://github.com/j3k0/mcp-google-workspace/commit/89c091ecf8b9f9c7291d1af0b1966e271f86551cpatch
https://github.com/j3k0/mcp-google-workspace/product

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