Claude Code's source code appears to have leaked: here's what we know

The leak provides competitors—from established giants to nimble rivals like Cursor—a literal blueprint for how to build a high-agency, reliable, and commercially viable AI agent.
Bleeping Computer

Claude Code source code accidentally leaked in NPM package

Anthropic says it accidentally leaked the source code for Claude Code, which is closed source, but the company says no customer data or credentials were exposed. While Anthropic pledges support to the ...
Ars Technica

Entire Claude Code CLI source code leaks thanks to exposed map file

The entire source code for Anthropic’s Claude Code command line interface application (not the models themselves) has been leaked and disseminated, apparently due ...
InfoWorld

Anthropic employee error exposes Claude Code source

A version of the AI coding tool in Anthropic's npm registry included a source map file, which leads to the full proprietary source code. An Anthropic employee accidentally exposed the entire ...
Bloomberg L.P.

Anthropic Rushes to Limit Leak of Claude Code Source Code

Anthropic PBC is rushing to address the inadvertent release of internal source code behind Claude Code, an AI-powered assistant that has become a key moneymaker for the company. Thousands of copies of ...
Business Insider

Anthropic accidentally exposed part of Claude Code's internal source code

Anthropic accidentally leaked some source code for Claude Code, its AI-powered coding assistant. The company said the leak did not include sensitive customer data or credentials. Anthropic recently ...

Critical flaw in Protobuf library enables JavaScript code execution

Proof-of-concept exploit code has been published for a critical remote code execution flaw in protobuf.js, a widely used ...
InfoQ

Anthropic Accidentally Exposes Claude Code Source via npm Source Map File

Security researcher Chaofan Shou discovered on March 31 that Anthropic's Claude Code CLI tool had its full TypeScript source code sitting in plain sight on the public ...
PC World

Anthropic leaked its own Claude Code source code by mistake

PCWorld reports that Anthropic accidentally leaked over 500,000 lines of source code for its AI coding tool Claude Code due to a misconfigured .map file in its npm package. The leak revealed ...
ExtremeTech

Claude Code's Own Full Source Code Leaked

On Tuesday, a security researcher named Chaofan Shou revealed on X that he had found a 59.8MB JavaScript source map file in a public release of Anthropic's Claude Code. This file is intended for ...
TechCrunch

Anthropic took down thousands of GitHub repos trying to yank its leaked source code — a move the company says was an accident

Anthropic accidentally caused thousands of code repositories on GitHub to be taken down while trying to pull copies of its most popular product’s source code off the internet. On Tuesday, a software ...