CVE-2025-24964

Remote Code Execution when accessing a malicious website while Vitest API server is listening

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.

Category

9.6
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.02%
Affected: vitest-dev vitest
Published at:
Updated at:

References

Link Tags
https://github.com/vitest-dev/vitest/security/advisories/GHSA-9crc-q9x8-hgqq
https://github.com/vitest-dev/vitest/blob/9a581e1c43e5c02b11e2a8026a55ce6a8cb35114/packages/vitest/src/api/setup.ts#L32-L46
https://github.com/vitest-dev/vitest/blob/9a581e1c43e5c02b11e2a8026a55ce6a8cb35114/packages/vitest/src/api/setup.ts#L66-L76
https://vitest.dev/config/#api

Frequently Asked Questions

What is the severity of CVE-2025-24964?
CVE-2025-24964 has been scored as a critical severity vulnerability.
How to fix CVE-2025-24964?
To fix CVE-2025-24964, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-24964 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-24964 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-24964?
CVE-2025-24964 affects vitest-dev vitest.
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