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Tue, 15 Sep 2026 19:30:00 +0000
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ssvc
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Tue, 15 Sep 2026 18:00:00 +0000
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| Description | mcp-searxng is a Model Context Protocol server that gives AI assistants web search and URL-reading capabilities through SearXNG. Prior to 1.7.1, web_url_read receives its caller-controlled URL through src/index.ts and validates only the literal hostname in assertUrlAllowed() within src/url-reader.ts before undiciFetch() performs operating-system DNS resolution. A public-looking attacker-controlled hostname that resolves to a private, loopback, link-local, or cloud-metadata address therefore passes the lexical check and causes the MCP server to connect to the internal destination. In the default HTTP configuration, an unauthenticated network client can use this path to read internal services, expose credentials or service tokens, and enumerate reachable internal hosts; in STDIO deployments, prompt-influenced tool selection can provide the malicious URL. Direct private IP literals are blocked, and MCP_HTTP_ALLOW_PRIVATE_URLS remains an explicit opt-out. This issue is fixed in version 1.7.1. | |
| Title | mcp-searxng: DNS-resolved Private Hostname SSRF in `web_url_read` | |
| Weaknesses | CWE-918 | |
| References |
| |
| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-09-15T18:31:03.944Z
Reserved: 2026-06-30T20:21:25.812Z
Link: CVE-2026-58485
Updated: 2026-09-15T18:28:56.360Z
Status : Received
Published: 2026-09-15T18:17:26.040
Modified: 2026-09-15T19:17:31.393
Link: CVE-2026-58485
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OpenCVE Enrichment
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