Apify MCP server: Domain Allowlist Bypass in fetch-apify-docs via String Prefix Matching
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| apify | apify-mcp-server | affected |
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| Apify | Apify-mcp-server |
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| Source | ID | Title |
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Github GHSA |
GHSA-jwp7-wg77-3w9v | Apify Model Context Protocol (MCP) server: Domain Allowlist Bypass in fetch-apify-docs via String Prefix Matching |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.234% probability within 30 days)
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| First Time appeared |
Apify
Apify apify-mcp-server |
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| Vendors & Products |
Apify
Apify apify-mcp-server |
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| Metrics |
ssvc
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| Description | The Apify MCP server enables AI agents to extract data from websites using ready-made scrapers, crawlers, and automation tools available on the Apify Store. Prior to 0.9.21, the fetch-apify-docs tool in src/tools/common/fetch_apify_docs.ts validates allowlisted documentation domains with String.startsWith() rather than URL hostname comparison, allowing attacker-controlled URLs such as `https://docs.apify.com.evil.com/` and `https://docs.apify.com@evil.com/` to pass the ALLOWED_DOC_DOMAINS check and return arbitrary fetched content to the LLM. This issue is fixed in version 0.9.21. | |
| Title | Apify MCP server: Domain Allowlist Bypass in fetch-apify-docs via String Prefix Matching | |
| Weaknesses | CWE-183 CWE-20 |
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| References |
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| Metrics |
cvssV3_1
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