CVE-2026-104120

A security vulnerability has been detected in modelcontextprotocol mcp-server-fetch and mcp-server-everything up to 2026.6.4. Affected is the function fetchurl of the file mcpserverfetch/server.py of the component Fetch Tool. The manipulation of the argument url/path leads to server-side request...

CVE-2026-104120

A server-side request forgery (SSRF) vulnerability exists in the modelcontextprotocol components mcp-server-fetch and mcp-server-everything up to version 2026.6.4 . The flaw is located in the fetch_url function within the file mcp_server_fetch/server.py of the Fetch Tool component. An attacker ca...

EUVD-2026-91161

A security vulnerability has been detected in modelcontextprotocol mcp-server-fetch and mcp-server-everything up to 2026.6.4. Affected is the function fetchurl of the file mcpserverfetch/server.py of the component Fetch Tool. The manipulation of the argument url/path leads to server-side request...

CVE-2026-104120 modelcontextprotocol mcp-server-fetch/mcp-server-everything Fetch Tool server.py fetch_url server-side request forgery

A security vulnerability has been detected in modelcontextprotocol mcp-server-fetch and mcp-server-everything up to 2026.6.4. Affected is the function fetchurl of the file mcpserverfetch/server.py of the component Fetch Tool. The manipulation of the argument url/path leads to server-side request...

PT-2026-104071

A security vulnerability has been detected in modelcontextprotocol mcp-server-fetch and mcp-server-everything up to 2026.6.4. Affected is the function fetch url of the file mcp server fetch/server.py of the component Fetch Tool. The manipulation of the argument url/path leads to server-side reque...

PYSEC-2026-3580 Nanobot contains a server-side request forgery vulnerability in the web_fetch tool

Nanobot prior to version 0.2.1 contains a server-side request forgery vulnerability in the webfetch tool that allows remote attackers to reach internal or private network hosts by supplying a URL that redirects to a loopback or private address via a 3xx Location header. Attackers can exploit the...

CVE-2026-15620

A security vulnerability has been detected in mosaxiv clawlet up to 0.2.10. This affects the function tools.webFetch of the file tools/toolwebfetch.go. Such manipulation leads to server-side request forgery. The attack can be launched remotely. The exploit has been disclosed publicly and may be...

EUVD-2026-43582

A security vulnerability has been detected in mosaxiv clawlet up to 0.2.10. This affects the function tools.webFetch of the file tools/toolwebfetch.go. Such manipulation leads to server-side request forgery. The attack can be launched remotely. The exploit has been disclosed publicly and may be...

CVE-2026-15619 mosaxiv clawlet IPv4 tool_web_fetch.go web_fetch server-side request forgery

A weakness has been identified in mosaxiv clawlet up to 0.2.10. The impacted element is the function webfetch of the file tools/toolwebfetch.go of the component IPv4 Handler. This manipulation of the argument url causes server-side request forgery. The attack can be initiated remotely. The exploi...

CVE-2026-15619

CVE-2026-15619 affects mosaxiv clawlet prior to 0.2.10. The vulnerable element is the web_fetch function in tools/tool_web_fetch.go of the IPv4 Handler. The issue arises from manipulating the url argument, enabling server-side request forgery (SSRF). The attack can be initiated remotely, and an e...

PT-2026-57933

A security vulnerability has been detected in mosaxiv clawlet up to 0.2.10. This affects the function tools.webFetch of the file tools/tool web fetch.go. Such manipulation leads to server-side request forgery. The attack can be launched remotely. The exploit has been disclosed publicly and may be...

Server-side Request Forgery (SSRF)

Overview Affected versions of this package are vulnerable to Server-side Request Forgery SSRF via the WebFetchTool.Execute function in the Guarded Web Fetch Flow process. An attacker can make the server initiate arbitrary HTTP requests to internal or external resources by supplying crafted URLs...

CVE-2026-15317

A security flaw has been discovered in Sipeed PicoClaw up to 0.2.9. Affected by this vulnerability is the function WebFetchTool.Execute of the file pkg/tools/integration/web.go of the component Guarded Web Fetch Flow. The manipulation results in server-side request forgery. The attack can be...

CVE-2026-15317

A security flaw has been discovered in Sipeed PicoClaw up to 0.2.9. Affected by this vulnerability is the function WebFetchTool.Execute of the file pkg/tools/integration/web.go of the component Guarded Web Fetch Flow. The manipulation results in server-side request forgery. The attack can be...

CVE-2026-15317

Sipeed PicoClaw

PT-2026-57020

A security flaw has been discovered in Sipeed PicoClaw up to 0.2.9. Affected by this vulnerability is the function WebFetchTool.Execute of the file pkg/tools/integration/web.go of the component Guarded Web Fetch Flow. The manipulation results in server-side request forgery. The attack can be...

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

SSRF Protection Bypass via IPv4-mapped IPv6 Loopback Summary auth-fetch-mcp v3.0.1 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 loopback addresses in their...

Claude Code: Out-of-Band Data Exfiltration via Pre-Approved HuggingFace Domain in WebFetch

Because the hostname huggingface.co was pre-approved as a bare hostname for the WebFetch tool, any path on that domain—including attacker-controlled model repositories—was auto-approved without a permission prompt or being subject to --allowedTools restrictions. An attacker able to inject untrust...

CVE-2026-49138

Nanobot prior to version 0.2.1 contains a server-side request forgery vulnerability in the webfetch tool that allows remote attackers to reach internal or private network hosts by supplying a URL that redirects to a loopback or private address via a 3xx Location header. Attackers can exploit the...

EUVD-2026-33757

Nanobot prior to version 0.2.1 contains a server-side request forgery vulnerability in the webfetch tool that allows remote attackers to reach internal or private network hosts by supplying a URL that redirects to a loopback or private address via a 3xx Location header. Attackers can exploit the...