CVE-2026-49857

auth-fetch-mcp is an MCP server that lets AI assistants fetch content from authenticated web pages. Version 3.0.1 implements SSRF protection in assertSafeUrl src/security.ts to block requests to private and loopback addresses. However, the isPrivateV6 function fails to detect IPv4-mapped IPv6...

EUVD-2026-58054

auth-fetch-mcp is an MCP server that lets AI assistants fetch content from authenticated web pages. Version 3.0.1 implements SSRF protection in assertSafeUrl src/security.ts to block requests to private and loopback addresses. However, the isPrivateV6 function fails to detect IPv4-mapped IPv6...

CVE-2026-49857 auth-fetch-mcp has SSRF Protection Bypass via IPv4-mapped IPv6 Loopback

auth-fetch-mcp is an MCP server that lets AI assistants fetch content from authenticated web pages. Version 3.0.1 implements SSRF protection in assertSafeUrl src/security.ts to block requests to private and loopback addresses. However, the isPrivateV6 function fails to detect IPv4-mapped IPv6...

CVE-2026-49857 auth-fetch-mcp has SSRF Protection Bypass via IPv4-mapped IPv6 Loopback

auth-fetch-mcp is an MCP server that lets AI assistants fetch content from authenticated web pages. Version 3.0.1 implements SSRF protection in assertSafeUrl src/security.ts to block requests to private and loopback addresses. However, the isPrivateV6 function fails to detect IPv4-mapped IPv6...

CVE-2026-49857

auth-fetch-mcp has an SSRF protection bypass via IPv4-mapped IPv6 loopback. The root cause is in isPrivateV6() handling of hex-normalized IPv4-mapped addresses; input like http://[::ffff:127.0.0.1]:PORT/ becomes http://[::ffff:7f00:1]:PORT/ and net.isIPv4 returns false, allowing requests to priva...

CVE-2026-49857

auth-fetch-mcp is an MCP server that lets AI assistants fetch content from authenticated web pages. Version 3.0.1 implements SSRF protection in assertSafeUrl src/security.ts to block requests to private and loopback addresses. However, the isPrivateV6 function fails to detect IPv4-mapped IPv6...

Server-side Request Forgery (SSRF)

Overview auth-fetch-mcp is a MCP server that lets AI read Notion, Google Docs, Jira & any login-protected page via a real browser Affected versions of this package are vulnerable to Server-side Request Forgery SSRF in the isPrivateV6 function, which fails to properly detect IPv4-mapped IPv6...

NPM: auth-fetch-mcp has SSRF Protection Bypass via IPv4-mapped IPv6 Loopback

NPM: auth-fetch-mcp has SSRF Protection Bypass via IPv4-mapped IPv6 Loopback vulnerability discovered by ? in WordPress Npm auth-fetch-mcp versions = 3.0.1...

NPM: auth-fetch-mcp: SSRF and disk exfiltration via unvalidated auth_fetch and download_media URLs

NPM: auth-fetch-mcp: SSRF and disk exfiltration via unvalidated authfetch and downloadmedia URLs vulnerability discovered by ? in WordPress Npm auth-fetch-mcp versions = 3.0.0...

EUVD-2025-202327

Fetch MCP Server has a Server-Side Request Forgery SSRF vulnerability...

Fetch MCP Server has a Server-Side Request Forgery (SSRF) vulnerability

fetch-mcp v1.0.2 and before is vulnerable to Server-Side Request Forgery SSRF vulnerability, which allows attackers to bypass private IP validation and access internal network resources...

GHSA-8FXJ-2G9Q-8FJW Fetch MCP Server has a Server-Side Request Forgery (SSRF) vulnerability

fetch-mcp v1.0.2 and before is vulnerable to Server-Side Request Forgery SSRF vulnerability, which allows attackers to bypass private IP validation and access internal network resources...

CVE-2025-65513

fetch-mcp v1.0.2 and before is vulnerable to Server-Side Request Forgery SSRF vulnerability, which allows attackers to bypass private IP validation and access internal network resources...

CVE-2025-65513

fetch-mcp v1.0.2 and before is vulnerable to Server-Side Request Forgery SSRF vulnerability, which allows attackers to bypass private IP validation and access internal network resources...

CVE-2025-65513

fetch-mcp v1.0.2 and before is vulnerable to Server-Side Request Forgery SSRF vulnerability, which allows attackers to bypass private IP validation and access internal network resources...

CVE-2025-65513

CVE-2025-65513 affects fetch-mcp v1.0.2 and earlier. The vulnerability is Server-Side Request Forgery (SSRF) that allows bypassing private IP validation to reach internal network resources. Reported root cause involves the is_ip_private logic in fetch-mcp server code (notably in the MCP fetch-ser...

CVE-2025-65513

fetch-mcp v1.0.2 and before is vulnerable to Server-Side Request Forgery SSRF vulnerability, which allows attackers to bypass private IP validation and access internal network resources...

PT-2025-50273

Name of the Vulnerable Software and Affected Versions fetch-mcp versions 1.0.2 and earlier Description The software is susceptible to a Server-Side Request Forgery SSRF issue. This allows attackers to circumvent private IP validation and gain access to internal network resources. Recommendations...