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CVE-2026-47429

9.8 · CRITICAL

Vitest is a testing framework powered by Vite.

Published Jul 14, 2026CWE-22EPSS 0.88%

Overview

CVE-2026-47429 is a critical-severity vulnerability. It was published on July 14, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Vitest is a testing framework powered by Vite. Prior to 3.2.5 and 4.1.0, the Vitest UI/API server on Windows used isFileServingAllowed incorrectly for /__vitest_attachment__, allowing \\?\\..\\ path traversal to read files outside the project; exposed API write and rerun features such as saveTestFile and rerun could also allow arbitrary script execution. This issue is fixed in versions 3.2.5 and 4.1.0.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/vitest-dev/vitest/commit/20e00ef7808de6d330c5e2fda530f686e08f1c8dGitHubgithub.com/vitest-dev/vitest/commit/af88b1f5d82844a4761ea9a977156c98e2b14ca8GitHubgithub.com/vitest-dev/vitest/pull/10445GitHubgithub.com/vitest-dev/vitest/pull/9350GitHubgithub.com/vitest-dev/vitest/releases/tag/v3.2.5GitHubgithub.com/vitest-dev/vitest/releases/tag/v4.1.0GitHubgithub.com/vitest-dev/vitest/security/advisories/GHSA-5xrq-8626-4rwpGitHubgithub.com/vitest-dev/vitest/security/advisories/GHSA-5xrq-8626-4rwp

How CyberStrike helps

Frequently asked questions

What is CVE-2026-47429?

CVE-2026-47429 is a critical-severity vulnerability. It was published on July 14, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2026-47429?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-47429?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-47429?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-47429 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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