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 ...

Exploit for Code Injection in Anthropic Claude_Code

dotclaude-security Scan a repo's local .claude/ confi...

MAL-2026-6260 Malicious code in free-anthropic-claude (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 11bfe96b56a6615a50639b25de793e14044ea393c2029b26fa4e1b9e3dc5a22f This package impersonates the Anthropic Claude SDK name and description claim to be an 'Official Anthropic Claude SDK wrapper', author is...

Malicious code in free-anthropic-claude (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 11bfe96b56a6615a50639b25de793e14044ea393c2029b26fa4e1b9e3dc5a22f This package impersonates the Anthropic Claude SDK name and description claim to be an 'Official Anthropic Claude SDK wrapper', author is...

MAL-2026-6232 Malicious code in free-claude (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 7e5cf1276f4faf6de26e95f05cc2bb95d90c71473c20e9542c9e88c2d949dfb9 Package name 'free-claude' and author 'anthropic-claude' impersonate Anthropic's Claude product, with a README claiming to install the official Claud...

Malicious code in free-claude (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 7e5cf1276f4faf6de26e95f05cc2bb95d90c71473c20e9542c9e88c2d949dfb9 Package name 'free-claude' and author 'anthropic-claude' impersonate Anthropic's Claude product, with a README claiming to install the official Claud...

MAL-2026-6228 Malicious code in base_parts_ai (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 07b0e2bcf47f6720470181fe18dda70621d52a4fb65fec395a87e14ec39c5219 When a user runs the package's jcc or jcx CLI, lib/aiutils.js polls https://jai.jaskle.cn/hm/hmpub/aicccfg for a newVer value and, if it differs from...

@claude-flow/plugin-agent-federation (>=1.0.0-alpha.9, <=1.0.0-alpha.15), @turtlepusher/plugin-agent-federation (>=1.0.0, <=1.0.1) +2 more potentially affected by CVE-2026-58195 via agentic-flow (>=2.0.2-alpha, <=2.0.12-fix.8)

agentic-flow NPM version =2.0.2-alpha, =1.0.0-alpha.9, =1.0.0, =0.5.0, =0.3.0, =0.3.1 Source cves: CVE-2026-58195 Source advisory: SNYK:JS-AGENTICFLOW-17818150...

Unsafe Dependency Resolution

Overview @theia/ai-claude-code is a Theia - Claude Code Integration Affected versions of this package are vulnerable to Unsafe Dependency Resolution via the automatic loading of .prompts/.prompttemplate files in a workspace. An attacker can manipulate the AI agent's system instructions by...

Unsafe Dependency Resolution

Overview @theia/ai-claude-code is a Theia - Claude Code Integration Affected versions of this package are vulnerable to Unsafe Dependency Resolution via the processing of workspace file and directory names in the AI chat. An attacker can cause the agent to execute attacker-controlled instructions...

GHSA-FQ4X-789W-JG5H AgenticMail: Unauthenticated inbound mail triggers bypassPermissions resume of the operator's Claude Code session (bridge-wake)

Summary Two inbound-mail handlers act on a privileged effect without verifying that the sender is the operator, while a sibling handler in the same repo does. The higher-impact one: any external email routed to the bridge inbox causes the dispatcher to resume the operator's Claude Code session wi...

MAL-2026-6133 Malicious code in panrouter (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 9fd8aaf176011a764d660ee547645c34815e959d39087519cd187c1ac1af2d53 panrouter is advertised as a 'Claude Code router' but on default invocation panrouter with no arguments it a installs and rewrites the user's Claude...

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...

1shot (>=0.0.3, <=0.0.9), @4via6/relay (>=1.0.0, <=1.1.3) +251 more potentially affected by CVE-2026-54316 via @anthropic-ai/claude-code (>=0.2.126, <=2.1.154)

@anthropic-ai/claude-code NPM version =0.2.126, =0.0.3, =1.0.0, =2.1.0, =0.1.18, =1.0.0, =0.4.0, =1.0.0, =0.2.3, =0.0.1, =0.0.1, =0.0.55, =0.0.69 and more Source cves: CVE-2026-54316 Source advisory: SNYK:JS-ANTHROPICAICLAUDECODE-17391874...

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...

1shot (>=0.0.3, <=0.0.9), @4via6/relay (>=1.0.0, <=1.1.3) +251 more potentially affected by CVE-2026-54316 via @anthropic-ai/claude-code (>=0.2.126, <=2.1.154)

@anthropic-ai/claude-code NPM version =0.2.126, =0.0.3, =1.0.0, =2.1.0, =0.1.18, =1.0.0, =0.4.0, =1.0.0, =0.2.3, =0.0.1, =0.0.1, =0.0.55, =0.0.69 and more Source cves: CVE-2026-54316 Source advisory: OSV:GHSA-FG94-H982-F3MM...

GHSA-FG94-H982-F3MM 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...

MAL-2026-6006 Malicious code in @mastra/claude (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 43c60df59e1fa51bbf7a5f6737d2c362f205589d70025f426f1004859168b1fe The package was found to contain malicious code or consuming dependency that contains malicious code Source: ghsa-malware...

Malicious code in @mastra/claude (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 43c60df59e1fa51bbf7a5f6737d2c362f205589d70025f426f1004859168b1fe The package was found to contain malicious code or consuming dependency that contains malicious code Source: ghsa-malware...

PT-2026-50594

Name of the Vulnerable Software and Affected Versions Claude Code versions 0.2.54 through 2.1.162 Description The WebFetch tool pre-approved the hostname 'huggingface.co' as a bare hostname, allowing any path on that domain to be auto-approved without a permission prompt or restrictions from...