Vitest: Servers misapply `server.fs.deny`, serving `.env`, private keys, `.git`, and the API token file

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-112948
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-20 16:17:05 UTC
Updated2026-10-20 19:56:45 UTC
DescriptionVitest 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.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Problem Types: CWE-200 | CWE-552 | CWE-200 CWE-200: Exposure of Sensitive Information to an Unauthorized Actor | CWE-552 CWE-552: Files or Directories Accessible to External Parties

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
3.1CNADECLARED6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Vitest-dev Vitest affected >= 5.0.0-beta.6, < 5.0.5 Not specified
CNA @vitest Browser affected >= 5.0.0-beta.6, < 5.0.5 Not specified
CNA @vitest Ui affected >= 5.0.0-beta.6, < 5.0.5 Not specified
CNA Vitejs Vite-plus affected >= 1.0.0-rc.0, < 1.3.0 Not specified

References

ReferenceSourceLinkTags
github.com/vitest-dev/vitest/commit/28dc1edfb6ba5a181fe208576989063795ae... [email protected] github.com
github.com/vitest-dev/vitest/pull/11578 [email protected] github.com
github.com/vitest-dev/vitest/releases/tag/v5.0.5 [email protected] github.com
github.com/vitest-dev/vitest/security/advisories/GHSA-p458-7748-mcp3 [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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