CVE-2026-7216 Details
Description
A weakness has been identified in donchelo processing-claude-mcp-bridge up to e017b20a4b592a45531a6392f494007f04e661bd. Impacted is an unknown function of the file processing_server.py of the component create_sketch Tool. This manipulation of the argument sketch_name causes path traversal. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks. This product follows a rolling release approach for continuous delivery, so version details for affected or updated releases are not provided. The project was informed of the problem early through an issue report but has not responded yet.
A path traversal vulnerability has been identified in the Donchelo Processing-Claude MCP Bridge application, specifically in the create_sketch tool of the processing_server.py file, in the version prior to e017b20a4b592a45531a6392f494007f04e661bd. The vulnerability arises because the application concatenates the user-supplied sketch_name directly into filesystem paths without proper validation, allowing for traversal sequences to escape the intended directory. This manipulation can be exploited remotely, with the published exploit creating files outside the designated Processing sketch directory on the user's Desktop.
Until the vulnerability is addressed, do not expose the create_sketch or update_sketch methods to untrusted callers. If temporary use is necessary, restrict the sketch_name parameter to a conservative allowlist of characters. Consider running the MCP server with a low-privilege account and storing sketches in a directory that does not contain sensitive sibling paths.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Apr 28, 2026CISA-ADP
Assessed Apr 28, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/donchelo/processing-claude-mcp-bridge/ | [email protected] | Source CodeVendor |
| https://github.com/donchelo/processing-claude-mcp-bridge/issues/1 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://vuldb.com/submit/802090 | [email protected] | ExploitIssue TrackingTechnical Description |
| https://vuldb.com/vuln/359816 | [email protected] | AdvisoryExploitPartial Content |
| https://vuldb.com/vuln/359816/cti | [email protected] | Content Wall |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-22 | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| donchelo processing-claude-mcp-bridge | All versions |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 24, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 29, 2026 | Data Remediation | [email protected] |
| Apr 28, 2026 | New CVE Received | [email protected] |