CVE-2025-24964 Remote Code Execution when accessing a malicious website while Vitest API server is listening
Attackers can execute arbitrary code via Cross-site WebSocket Hijacking if the Vitest API server is enabled and lacks origin checks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2025-24964?
CVE-2025-24964 is a critical vulnerability in vitest-dev vitest, published on 4 Feb 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Vitest is a testing framework powered by Vite. Affected versions are subject to arbitrary remote Code Execution when accessing a malicious website while Vitest API server is listening by Cross-site WebSocket hijacking (CSWSH) attacks. When `api` option is enabled (Vitest UI enables it), Vitest starts a WebSocket server. This WebSocket server did not check Origin header and did not have any authorization mechanism and was vulnerable to CSWSH attacks. This WebSocket server has `saveTestFile` API that can edit a test file and `rerun` API that can rerun the tests. An attacker can execute arbitrary code by injecting a code in a test file by the `saveTestFile` API and then running that file by calling the `rerun` API. This vulnerability can result in remote code execution for users that are using Vitest serve API. This issue has been patched in versions 1.6.1, 2.1.9 and 3.0.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Weakness: CWE-1385
Which versions are affected by CVE-2025-24964?
8 open source packages ship an affected version, including vitest. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
vitest npm | All versions to 0.0.125 | None |
vitest npm | All versions to 0.0.125 | None |
vitest npm | From 1.0.0 | 1.6.1 |
vitest npm | From 1.0.0 | 1.6.1 |
vitest npm | From 2.0.0 | 2.1.9 |
vitest npm | From 2.0.0 | 2.1.9 |
2 more packages
vitest npm | From 3.0.0 | 3.0.5 |
vitest npm | From 3.0.0 | 3.0.5 |
Products include Vitest.dev Vitest.
How do I fix CVE-2025-24964?
Upgrade vitest to a fixed version for your release line: 1.6.1, 2.1.9 or 3.0.5.
Is CVE-2025-24964 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-24964 exists.
Other vulnerabilities in vitest-dev vitest
Sources
Also known as GHSA-9crc-q9x8-hgqq, ROOT-APP-NPM-CVE-2025-24964.