# Vitest vulnerabilities

Source: https://junglewise.ai/threats/technologies/npm-vitest  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/npm-vitest.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 5 vulnerabilities in Vitest: 0 in the last 7 days and 1 in the last 90 days, 2 of them critical and 0 exploited in the wild. The most recent, CVE-2026-84373, was published on 1 September 2026. Nothing was published in the last eight weeks.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 1
- All time: 5 (2 critical, 0 exploited in the wild)

## About Vitest

Unit testing framework built on top of Vite for JavaScript and TypeScript projects.

## Latest Vitest vulnerabilities

- [CVE-2026-84373: Vitest @vitest/mocker path traversal in redirect mock](https://junglewise.ai/threats/cve-2026-84373-vitest-vitest-mocker-path-traversal-in-redirect-mock) (medium, CVSS 5.9, published 1 Sep 2026)
- [CVE-2026-53633: Vitest remote code execution in Browser Mode cdp API](https://junglewise.ai/threats/cve-2026-53633-vitest-remote-code-execution-in-browser-mode-cdp-api) (critical, CVSS 9.8, published 14 Jul 2026)
- [CVE-2026-47429: Vitest path traversal and remote code execution in UI/API server](https://junglewise.ai/threats/cve-2026-47429-vitest-path-traversal-and-remote-code-execution-in-ui-api-server) (critical, CVSS 9.8, published 14 Jul 2026)
- [CVE-2025-24964: Vitest remote code execution via CSWSH in WebSocket API](https://junglewise.ai/threats/cve-2025-24964-vitest-remote-code-execution-via-cswsh-in-websocket-api) (low, CVSS 3.1, published 4 Feb 2025)
- [CVE-2025-24963: Vitest browser mode arbitrary file read via screenshot-error handler](https://junglewise.ai/threats/cve-2025-24963-vitest-browser-mode-arbitrary-file-read-via-screenshot-error) (low, CVSS 3.1, published 4 Feb 2025)

## Most severe Vitest vulnerabilities

- [CVE-2026-53633: Vitest remote code execution in Browser Mode cdp API](https://junglewise.ai/threats/cve-2026-53633-vitest-remote-code-execution-in-browser-mode-cdp-api) (critical, CVSS 9.8, published 14 Jul 2026)
- [CVE-2026-47429: Vitest path traversal and remote code execution in UI/API server](https://junglewise.ai/threats/cve-2026-47429-vitest-path-traversal-and-remote-code-execution-in-ui-api-server) (critical, CVSS 9.8, published 14 Jul 2026)
- [CVE-2026-84373: Vitest @vitest/mocker path traversal in redirect mock](https://junglewise.ai/threats/cve-2026-84373-vitest-vitest-mocker-path-traversal-in-redirect-mock) (medium, CVSS 5.9, published 1 Sep 2026)
- [CVE-2025-24963: Vitest browser mode arbitrary file read via screenshot-error handler](https://junglewise.ai/threats/cve-2025-24963-vitest-browser-mode-arbitrary-file-read-via-screenshot-error) (low, CVSS 3.1, published 4 Feb 2025)
- [CVE-2025-24964: Vitest remote code execution via CSWSH in WebSocket API](https://junglewise.ai/threats/cve-2025-24964-vitest-remote-code-execution-via-cswsh-in-websocket-api) (low, CVSS 3.1, published 4 Feb 2025)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 1 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Vitest vulnerabilities", https://junglewise.ai/threats/technologies/npm-vitest, 13 November 2026.