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Anthropic confirms Claude Code source code leak

Critical Vulnerability in Claude Code Emerges Days After Source Leak

Within days of each other, Anthropic first leaked the source code to Claude Code, and then a critical vulnerability was found by Adversa AI. Anthropic’s Claude Code is in the news again – and not for the best reasons.

The Hacker News · 1d

Claude Code Source Leaked via npm Packaging Error, Anthropic Confirms

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Anthropic mistakenly leaks its own AI coding tool’s source code, just days after accidentally revealing an upcoming model known as Mythos

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Anthropic releases part of AI tool source code in 'error'

Anthropic accidentally released part of the internal source code for its AI-powered coding assistant Claude Code due to "human error," the company said Tuesday.

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Anthropic leaks part of Claude Code's internal source code

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Anthropic scrambles to contain self-inflicted leak of valuable AI code

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What Anthropic’s Leak Means For The Coming Wave Of ‘Dark Code’

The leak, triggered by a human error, exposed 500,000 lines of source code of Anthropic’s star product Claude Code.

The Hacker News

OpenAI Patches ChatGPT Data Exfiltration Flaw and Codex GitHub Token Vulnerability

ChatGPT and Codex flaws patched Feb 2026 exposed DNS exfiltration and GitHub tokens, raising enterprise AI security risks.

Infosecurity Magazine

ChatGPT Security Issue Enabled Data Theft via Single Prompt

A security vulnerability in ChatGPT executed with a single malicious prompt could be exploited to covertly exfiltrate sensitive data from prompts and messages. The security issue, which enabled data exfiltration and remote code execution,

csis.org

AI-Driven Code Analysis: What Claude Code Security Can—and Can’t—Do

Q1: How does Claude Code Security function—and how does it differ from traditional static application security testing (SAST)? A1: Conventional rule-based static analysis uses pattern matching, comparing code with known vulnerability signatures.

Dark Reading

Claude Code Security Shows Promise, Not Perfection

Claude Code Security made a big splash when it was introduced last week, but it may be too early to call it as disruptive as the markets suggested. Anthropic unveiled Claude Code Security on Feb. 20, built into the web version of agentic AI coding tool ...