Anthropic Accidentally Exposes Claude Code Source Files
Anthropic accidentally published internal Claude Code source files on March 31, 2026, after an npm package included a map file that pointed to a zip archive on a Cloudflare R2 bucket. Security researcher Chaofan Shou and others downloaded roughly 1,900 TypeScript files (about 512,000 lines), which were mirrored and forked over 41,500 times on GitHub. Anthropic says it was human error, no customer data was exposed, and fixes are underway.
Scoring Rationale
Confirmed same-day leak with strong evidence (public GitHub mirrors and company admission) raises novelty and actionability. Scope is primarily Anthropic but has broader supply-chain implications for developers, so score is high for immediacy and practical relevance.
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Sources
- Read OriginalAnthropic accidentally exposes Claude Code source codetheregister.com
- Read OriginalAnthropic Accidentally Leaked Claude Code's Source—The Internet Is Keeping It Foreverdecrypt.co
