6.5
MEDIUM CVSS 2.0
CVE-2026-10277
j3k0 mcp-google-workspace MCP Gmail Tool gmail.ts saveToDisk access control
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.

INFO

Published Date :

June 1, 2026, 7:16 p.m.

Last Modified :

June 2, 2026, 1:03 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-10277 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 J3k0 mcp-google-workspace
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.1 MEDIUM [email protected]
CVSS 4.0 LOW [email protected]
Solution
Apply the provided patch to address improper access controls in the MCP Gmail Tool.
  • Install the patch identified by 89c091ecf8b9f9c7291d1af0b1966e271f86551c.
  • Review access controls for the saveToDisk function.
  • Update the MCP Gmail Tool to the latest version.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-10277 is associated with the following CWEs:

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-10277 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-10277 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Jun. 01, 2026

    Action Type Old Value New Value
    Added 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.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
    Added CVSS V2 (AV:N/AC:L/Au:S/C:P/I:P/A:P)
    Added CWE CWE-284
    Added CWE CWE-266
    Added Reference https://github.com/j3k0/mcp-google-workspace/
    Added Reference https://github.com/j3k0/mcp-google-workspace/commit/89c091ecf8b9f9c7291d1af0b1966e271f86551c
    Added Reference https://github.com/j3k0/mcp-google-workspace/issues/19
    Added Reference https://github.com/j3k0/mcp-google-workspace/pull/22
    Added Reference https://vuldb.com/cve/CVE-2026-10277
    Added Reference https://vuldb.com/submit/825416
    Added Reference https://vuldb.com/vuln/367570
    Added Reference https://vuldb.com/vuln/367570/cti
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.