Medium · published January 21, 2026
⚠️ A sneaky configuration flaw could let attackers snatch your Anthropic API keys right under your nose! 🎭 Think of it like a waiter mistakenly bringing out the wrong dish—your sensitive data is served to an attacker before you even get a chance to specify what you want! 🍽️ An attacker controlling a malicious repository might snatch sensitive data, including your precious API keys, before you even confirm the trust in their repository. This means they could manipulate your API calls, leading to unintended data leaks or even unauthorized actions on your behalf.
Think of it like a waiter mistakenly bringing out the wrong dish—your sensitive data is served to an attacker before you even get a chance to specify what you want! 🍽️ This vulnerability allows an attacker to exfiltrate user's API keys by hosting a malicious settings file in a repository that Claude Code reads before the user confirms trust. The tool makes API requests to the attacker's endpoint immediately after loading the project without waiting for user approval.
An attacker controlling a malicious repository might snatch sensitive data, including your precious API keys, before you even confirm the trust in their repository. This means they could manipulate your API calls, leading to unintended data leaks or even unauthorized actions on your behalf. If you're using Claude Code and haven't auto-updated, make sure to upgrade to version 2.0.65 or the latest release. This patch ensures your API keys and configurations are safe from unwanted attention. Don't forget to check your repository configurations to avoid future mishaps! You've got this! Stay secure and keep those keys safe! 🛡️