CVE-2024-48919 RCE via Prompt Injection Into Cursor's Terminal Cmd-K
Attackers can execute arbitrary terminal commands in Cursor by injecting malicious prompts via compromised web pages, requiring user opt-in to include external content.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-48919?
CVE-2024-48919 is a critical code injection vulnerability in getcursor cursor, published on 22 Oct 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Cursor is a code editor built for programming with AI. Prior to Sep 27, 2024, if a user generated a terminal command via Cursor's Terminal Cmd-K/Ctrl-K feature and if the user explicitly imported a malicious web page into the Terminal Cmd-K prompt, an attacker with control over the referenced web page could have a significant chance of influencing a language model to output arbitrary commands for execution in the user's terminal. This scenario would require the user explicitly opt-in to including the contents of a compromised webpage, and it would require that the attacker display prompt injection text in the the contents of the compromised webpage.
A server-side patch to not stream back newlines or control characters was released on September 27, 2024, within two hours of the issue being reported. Additionally, Cursor 0.42 includes client-side mitigations to prevent any newline or control character from being streamed into the terminal directly. It also contains a new setting, `"cursor.terminal.usePreviewBox"`, which, if set to true, streams the response into a preview box whose contents then have to be manually accepted before being inserted into the terminal. This setting is useful if you're working in a shell environment where commands can be executed without pressing enter or any control character. The patch has been applied server-side, so no additional action is needed, even on older versions of Cursor. Separately, Cursor's maintainers also recommend, as best practice, to only include trusted pieces of context in prompts.
Weakness: CWE-20
Which versions are affected by CVE-2024-48919?
How do I fix CVE-2024-48919?
No fix has been published for CVE-2024-48919 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2024-48919 being exploited?
There is no known exploitation of CVE-2024-48919 in the wild and no public exploit code.