browser_network_request
on npm:@playwright/mcp@0.0.75
Severity
1 finding on this tool
- mediumunconstrained inputf-r1-browser_network_request
Tool `browser_network_request` accepts unconstrained string input
The following string parameter(s) have no `maxLength` constraint: `filename`, `part`. Unbounded strings let an attacker stuff arbitrary payloads through the tool, including indirect-injection content.
fix: Add a `maxLength` to each string property, or constrain with an `enum` or `pattern`. Most legitimate tool inputs fit under a few hundred bytes.
OWASP LLM01NIST MEASURE-2.3ATLAS T0051
About this tool
browser_network_request is one of 23 tools exposed by Playwright MCP. The server scored 40/100 overall against the capframe rule engine (source: sandbox). Last scanned 2026-06-05.
The findings above are emitted by the public capframe.findings.v1 schema. Disagree with one? Open an issue.