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 :
July 22, 2026, 7:10 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | LOW | [email protected] |
Solution
- Install the patch identified by 89c091ecf8b9f9c7291d1af0b1966e271f86551c.
- Review access controls for the saveToDisk function.
- Update the MCP Gmail Tool to the latest version.
Public PoC/Exploit Available at Github
CVE-2026-10277 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-10277.
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:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-10277
weaknesses.
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).
The Project shares all information on MCP related CVE's published
mcp mcp-security mcp-cve
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.
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CVE Translated by [email protected]
Jul. 22, 2026
Action Type Old Value New Value Added Translation Title: mcp-google-workspace de j3k0, Description: Se encontró una vulnerabilidad en j3k0 mcp-google-workspace hasta 831790e7d5c2663325733d9f5579cc339a267c4c. Este problema afecta a la función saveToDisk del archivo src/tools/gmail.ts del componente MCP Gmail Tool. Realizar una manipulación resulta en controles de acceso inadecuados. Es posible iniciar el ataque de forma remota. El exploit ha sido hecho público y podría ser usado. Este producto está usando una versión continua para proporcionar entrega continua. Por lo tanto, no hay detalles de versión disponibles para las versiones afectadas ni actualizadas. El parche se llama 89c091ecf8b9f9c7291d1af0b1966e271f86551c. Se sugiere instalar un parche para abordar este problema. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'cpes': ['cpe:2.3:a:j3k0:mcp-google-workspace:*:*:*:*:*:*:*:*'], 'vendor': 'j3k0', 'modules': ['MCP Gmail Tool'], 'product': 'mcp-google-workspace', 'versions': [{'status': 'affected', 'version': '831790e7d5c2663325733d9f5579cc339a267c4c'}]}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-10277', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-06-01T19:34:18.811378Z'} -
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