cve-2026-54316-lab

CVE-2026-54316 — Laboratorio de exfiltración de Claude Code vía WebFetch y HuggingFace Un laboratorio autocontenido y desechable que reproduce GHSA-fg94-h982-f3mm / CVE-2026-54316: Claude Code preaprobó huggingface.co como un nombre de host simple para la herramienta WebFetch, por lo que cualquie...

EUVD-2026-45404

A vulnerability was determined in zhayujie CowAgent up to 2.1.1. This affects the function WebFetch.execute of the file agent/tools/webfetch/webfetch.py. Executing a manipulation of the argument url can lead to server-side request forgery. The attack may be performed from remote. The exploit has...

CVE-2026-16194

A vulnerability was determined in zhayujie CowAgent up to 2.1.1. This affects the function WebFetch.execute of the file agent/tools/webfetch/webfetch.py. Executing a manipulation of the argument url can lead to server-side request forgery. The attack may be performed from remote. The exploit has...

CVE-2026-16194

A vulnerability was determined in zhayujie CowAgent up to 2.1.1. This affects the function WebFetch.execute of the file agent/tools/webfetch/webfetch.py. Executing a manipulation of the argument url can lead to server-side request forgery. The attack may be performed from remote. The exploit has...

CVE-2026-16194

CVE-2026-16194 affects zhayujie CowAgent (up to 2.1.1). The issue is in WebFetch.execute (agent/tools/web_fetch/web_fetch.py): manipulating the url parameter can trigger a server-side request forgery. The attack is described as remote; a fix is available in version 2.1.2 (commit ea47f3097eed4f829...

CVE-2026-16194 zhayujie CowAgent web_fetch.py WebFetch.execute server-side request forgery

A vulnerability was determined in zhayujie CowAgent up to 2.1.1. This affects the function WebFetch.execute of the file agent/tools/webfetch/webfetch.py. Executing a manipulation of the argument url can lead to server-side request forgery. The attack may be performed from remote. The exploit has...

PT-2026-60992

A vulnerability was determined in zhayujie CowAgent up to 2.1.1. This affects the function WebFetch.execute of the file agent/tools/web fetch/web fetch.py. Executing a manipulation of the argument url can lead to server-side request forgery. The attack may be performed from remote. The exploit ha...

CVE-2026-15620 mosaxiv clawlet tool_web_fetch.go tools.webFetch server-side request forgery

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...

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-2026-54316

A flaw was found in Claude Code, an agentic coding tool. An attacker could exploit a misconfiguration in the tool's web request functionality, known as WebFetch, where the huggingface.co domain was pre-approved without proper path restrictions. By injecting untrusted content into a Claude Code...

Anthropic Claude Code 0.2.54 < 2.1.163 Data Exfiltration (CVE-2026-54316)

The version of Anthropic Claude Code installed on the remote host is 0.2.54 prior to 2.1.163. It is, therefore, affected by a data exfiltration vulnerability. - Because the hostname huggingface.co was pre-approved as a bare hostname for the WebFetch tool, any path on that domain including...

Out Of Band Data Exfiltration

Claude Code is vulnerable to Out-of-Band Data Exfiltration. The vulnerability is due to the pre-approval of the hostname huggingface.co as a bare hostname for the WebFetch tool, where any path on that domain—including attacker-controlled model repositories—was auto-approved without a permission...

EUVD-2026-38538

Claude Code is an agentic coding tool. From 0.2.54 until 2.1.163, 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 ...

CVE-2026-54316 Claude Code: Out-of-Band Data Exfiltration via Pre-Approved HuggingFace Domain in WebFetch

Claude Code is an agentic coding tool. From 0.2.54 until 2.1.163, 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 ...

CVE-2026-54316 Claude Code: Out-of-Band Data Exfiltration via Pre-Approved HuggingFace Domain in WebFetch

Claude Code is an agentic coding tool. From 0.2.54 until 2.1.163, 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 ...

CVE-2026-54316

Claude Code is an agentic coding tool. From 0.2.54 until 2.1.163, 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 ...

CVE-2026-54316

CVE-2026-54316 (Claude Code) affects Claude Code versions 0.2.54–2.1.162, fixed in 2.1.163. The WebFetch tool allowed any path on the pre-approved domain huggingface.co, enabling an attacker-controlled repository path to be fetched without prompts or --allowedTools restrictions. If an attacker ca...

CVE-2026-54316 Claude Code: Out-of-Band Data Exfiltration via Pre-Approved HuggingFace Domain in WebFetch

Claude Code is an agentic coding tool. From 0.2.54 until 2.1.163, 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 ...

CVE-2026-54316: Permissive List of Allowed Inputs

Claude Code is an agentic coding tool. From 0.2.54 until 2.1.163, 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 ...

Covert Storage Channel

Overview @anthropic-ai/claude-code is an Use Claude, Anthropic's AI assistant, right from your terminal. Claude can understand your codebase, edit files, run terminal commands, and handle entire workflows for you. Affected versions of this package are vulnerable to Covert Storage Channel via the...