@vitest/browser Known Vulnerabilities & Fixes
@vitest/browser has 3 known security vulnerabilities in npm (Node.js). Upgrade to version 5.0.0-beta.6 or later to resolve all known issues. Data sourced from OSV, enriched with EPSS exploit probability and CISA KEV.
Low Immediate Risk
No actively exploited vulnerabilities detected. Monitor and update in your next maintenance window.
Recommended safe version: 5.0.0-beta.6
Upgrading to 5.0.0-beta.6 or later resolves all 3 known vulnerabilities in @vitest/browser. Run: npm install @vitest/browser@5.0.0-beta.6
Is @vitest/browser in your project?
Check if you're affected and upgrade to 5.0.0-beta.6 to stay secure.
Security Summary
- 8 affected version ranges have been identified across these 3 advisories.
- 100% of known issues have a published fixed version.
- Remediation: npm update @vitest/browser
Vulnerabilities
3 unique vulnerabilities — sorted by exploitation risk (KEV → EPSS → CVSS). Click a CVE/GHSA ID for full details. First disclosed Jun 1, 2026, most recently Jul 21, 2026 (50 days apart).
| CVE / GHSA | Severity | Affected | Fixed In |
|---|---|---|---|
| CVE-2026-53633 Vitest Browser: Exposed Browser Mode API Can Proxy CDP and Overwrite Config Files, Leading to RCE | CRITICAL | All versions | 5.0.0-beta.4, 4.1.8, 3.2.5 |
| CVE-2026-73653 @vitest/browser: Browser Mode provider commands bypass the file-access permission gate | CRITICAL | All versions | 4.1.10, 3.2.7, 5.0.0-beta.6 |
| CVE-2026-47428 Vitest browser mode serves unsanitized otelCarrier query parameter as inline script | CRITICAL | All versions | 4.1.6, 5.0.0-beta.3 |
About This Data
Vulnerability data for @vitest/browser is sourced from the Open Source Vulnerability (OSV) database, aggregating reports from GitHub Advisory Database, NIST NVD, and ecosystem-specific sources.
CVSS (Common Vulnerability Scoring System) scores reflect exploitability and impact. EPSS (Exploit Prediction Scoring System) scores indicate the probability of exploitation within the next 30 days. Vulnerabilities marked with are listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
Related npm (Node.js) Packages
Other packages in this ecosystem, ranked by shared vulnerabilities where available.
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