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Hi there,

This pull request shares a security update on dev-browser.

We also have an entry for dev-browser in our directory, MseeP.ai, where we provide regular security and trust updates on your app.

We invite you to add our badge for your MCP server to your README to help your users learn from a third party that provides ongoing validation of dev-browser.

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The MseeP Team
MCP servers you can trust

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Here are our latest evaluation results of dev-browser

Security Scan Results

Security Score: 94/100

Risk Level: low

Scan Date: 2026-07-06

Score starts at 100, deducts points for security issues, and adds points for security best practices

Detected Vulnerabilities

Medium Severity

• picomatch

  • [{'source': 1115549, 'name': 'picomatch', 'dependency': 'picomatch', 'title': 'Picomatch: Method Injection in POSIX Character Classes causes incorrect Glob Matching', 'url': 'https://github.com/advisories/GHSA-3v7f-55p6-f55p', 'severity': 'moderate', 'cwe': ['CWE-1321'], 'cvss': {'score': 5.3, 'vectorString': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'}, 'range': '<2.3.2'}, {'source': 1115552, 'name': 'picomatch', 'dependency': 'picomatch', 'title': 'Picomatch has a ReDoS vulnerability via extglob quantifiers', 'url': 'https://github.com/advisories/GHSA-c2c7-rcm5-vvqj', 'severity': 'high', 'cwe': ['CWE-1333'], 'cvss': {'score': 7.5, 'vectorString': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}, 'range': '<2.3.2'}]
  • Fixed in version: unknown

• yaml

  • [{'source': 1115556, 'name': 'yaml', 'dependency': 'yaml', 'title': 'yaml is vulnerable to Stack Overflow via deeply nested YAML collections', 'url': 'https://github.com/advisories/GHSA-48c2-rrv3-qjmp', 'severity': 'moderate', 'cwe': ['CWE-674'], 'cvss': {'score': 4.3, 'vectorString': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L'}, 'range': '>=2.0.0 <2.8.3'}]
  • Fixed in version: unknown

Security Findings

Medium Severity Issues

• semgrep: Insecure WebSocket Detected. WebSocket Secure (wss) should be used for all WebSocket connections.
  • Location: cli/src/main.rs
  • Line: 120

This security assessment was conducted by MseeP.ai, an independent security validation service for MCP servers. Visit our website to learn more about our security reviews.