CVE-2026-102242— Path Traversal via Symlink Following in allowedLocalRoots in MCP Toolbox for Databases
Quick assessment
Affected
Google MCP Toolbox for Databases
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Improper link resolution (CWE-59 / CWE-22) in the allowedLocalRoots path validation in Google MCP Toolbox for Databases versions 1.2.0 through 1.9.0 allows a remote authenticated attacker with tool execution permissions to bypass directory boundary restriction
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I. Basic Information for CVE-2026-102242
Vulnerability Information
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Vulnerability Title
Path Traversal via Symlink Following in allowedLocalRoots in MCP Toolbox for Databases
Source: CVE Program / CVE List V5
Vulnerability Description
Improper link resolution (CWE-59 / CWE-22) in the allowedLocalRoots path validation in Google MCP Toolbox for Databases versions 1.2.0 through 1.9.0 allows a remote authenticated attacker with tool execution permissions to bypass directory boundary restrictions via symbolic links. Because path validation checks directories lexically without resolving symbolic links first, an attacker can access or overwrite arbitrary local files located outside the permitted root directories.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| MCP Toolbox for Databases | 1.2.0 ~ 1.9.0 | - |
|
II. Public POCs for CVE-2026-102242
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-102242 (1)
Same Patch Batch · Google · 2026-09-29 · 109 CVEs total
| CVE-2026-95382 | CVE-2026-95382 | |
| CVE-2026-95365 | CVE-2026-95365 | |
| CVE-2026-95318 | CVE-2026-95318 | |
| CVE-2026-95338 | CVE-2026-95338 | |
| CVE-2026-95343 | CVE-2026-95343 | |
| CVE-2026-95280 | CVE-2026-95280 | |
| CVE-2026-95306 | CVE-2026-95306 | |
| CVE-2026-95304 | CVE-2026-95304 | |
| CVE-2026-95287 | CVE-2026-95287 | |
| CVE-2026-95299 | CVE-2026-95299 | |
| CVE-2026-95366 | CVE-2026-95366 | |
| CVE-2026-95351 | CVE-2026-95351 | |
| CVE-2026-95331 | CVE-2026-95331 | |
| CVE-2026-95381 | CVE-2026-95381 | |
| CVE-2026-95330 | CVE-2026-95330 | |
| CVE-2026-95376 | CVE-2026-95376 | |
| CVE-2026-95359 | CVE-2026-95359 | |
| CVE-2026-95337 | CVE-2026-95337 | |
| CVE-2026-95294 | CVE-2026-95294 | |
| CVE-2026-95345 | CVE-2026-95345 |
Showing top 20 of 109 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
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V. Comments for CVE-2026-102242
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