Agentjacking: Researchers Show How One Fake Bug Report Can Hijack AI Coding Agents

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Tenet Threat Labs has demonstrated Agentjacking, an attack technique that shows how fake Sentry error reports could trick AI coding agents into running commands on a developer’s machine. The technique abuses the way AI coding assistants process untrusted error logs from Sentry, a popular application monitoring platform.

The Attack Method

According to Tenet’s blog post, Agentjacking does not require stolen passwords or direct access to a company’s internal network. In the demonstrated attack path, an attacker could inspect a website’s public source code to find its Sentry Data Source Name (DSN), a project identifier that is often exposed by design so applications can send error reports to Sentry.

With the exposed DSN, Tenet showed that an attacker could submit a fake error report to Sentry. The report used Markdown injection to disguise attacker-controlled text inside the issue content. If a developer then asked an AI coding agent to investigate...

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