Vulnerability Description
Vitest is a testing framework powered by Vite. From 5.0.0-beta.6 until 5.0.5, Vitest dev servers can misapply server.fs.deny because project servers replace Vite's defaults and the root server adds .vitest-secret-token after Vite compiles its matcher. An attacker who can reach an affected UI, Browser Mode, or API server can read denied project files or the fallback API token at node_modules/.vitest/.vitest-secret-token, and Browser Mode with test.projects can expose JavaScript-compatible .env values through a malicious website. This issue is fixed in version 5.0.5.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/vitest-dev/vitest/commit/28dc1edfb6ba5a181fe208576989063795ae
- https://github.com/vitest-dev/vitest/pull/11578
- https://github.com/vitest-dev/vitest/releases/tag/v5.0.5
- https://github.com/vitest-dev/vitest/security/advisories/GHSA-p458-7748-mcp3
FAQ
What is CVE-2026-112948?
CVE-2026-112948 is a vulnerability with a CVSS score of 6.5 (MEDIUM). Vitest is a testing framework powered by Vite. From 5.0.0-beta.6 until 5.0.5, Vitest dev servers can misapply server.fs.deny because project servers replace Vite's defaults and the root server adds .v...
How severe is CVE-2026-112948?
CVE-2026-112948 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-112948?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.