obscura-mcp
An MCP server adapter for Obscura, a lightweight Rust headless browser for scraping and AI agent automation.
Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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Metadrama
Source: Glama
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Install from
The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.
Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
node-tar Vulnerable to Arbitrary File Creation/Overwrite via Hardlink Path Traversal
Arbitrary File Read/Write via Hardlink Target Escape Through Symlink Chain in node-tar Extraction
node-tar is Vulnerable to Arbitrary File Overwrite and Symlink Poisoning via Insufficient Path Sanitization
node-tar Symlink Path Traversal via Drive-Relative Linkpath
tar has Hardlink Path Traversal via Drive-Relative Linkpath
CDP_REQUEST_TIMEOUT_MS10000 Milliseconds to wait for CDP responseMCP_HTTP_HOST127.0.0.1 HTTP transport hostMCP_HTTP_PATHMCP_HTTP_PORT3000 HTTP transport portMCP_TRANSPORTstdio Transport mode: stdio or streamable-httpOBSCURA_NAVIGATION_WAIT_MS3000 Milliseconds to wait after page navigationOBSCURA_PATHexport =/path/to/obscuraOBSCURA_PROXYProxy URL for all trafficOBSCURA_SESSION_CLEANUP_MSOBSCURA_SESSION_TIMEOUT_MSOBSCURA_STARTUP_TIMEOUT_MS15000 Milliseconds to wait for Obscura CDP to startOBSCURA_STEALTHEnable stealth mode (anti-detection)OBSCURA_USER_AGENTDefault user-agent overrideOBSCURA_VERBOSETool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
4/4 tools missing one or more hints — browse_page (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); browse_interact (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); browse_session (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +1 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Shell command execution
1 child_process call — runs shell commands
Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.
Production dependencies are patched
0 critical, 6 high severity in production deps — tar@7.1.1 (high), tar@7.1.1 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
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