Vitest: Exposed Browser Mode API Can Proxy CDP and Overwrite Config Files, Leading to RCE

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-53633
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-14 20:17:42 UTC
Updated2026-07-14 20:17:42 UTC
DescriptionVitest is a testing framework powered by Vite. From 3.0.0 until 3.2.5, 4.1.8, and 5.0.0-beta.4, Vitest Browser Mode exposed a cdp() API that forwarded raw Chrome DevTools Protocol methods without being gated by allowWrite or allowExec, allowing a remote client with exposed browser API metadata to use CDP Page.setDownloadBehavior and Runtime.evaluate to overwrite vite.config.ts and execute attacker-controlled Node.js code. This issue is fixed in versions 3.2.5, 4.1.8, and 5.0.0-beta.

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from [email protected]

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

Problem Types: CWE-749 | CWE-862 | CWE-749 CWE-749: Exposed Dangerous Method or Function | CWE-862 CWE-862: Missing Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Vitest-dev Vitest affected >= 3.0.0, < 3.2.5 Not specified
CNA Vitest-dev Vitest affected >= 4.0.0, < 4.1.8 Not specified
CNA Vitest-dev Vitest affected >= 5.0.0-beta.0, < 5.0.0-beta.4 Not specified

References

ReferenceSourceLinkTags
github.com/vitest-dev/vitest/commit/385a1aefd4c2bfa5e7d58bf7c6834c929969... [email protected] github.com
github.com/vitest-dev/vitest/commit/63e3b2eee4d58da56786a6333f517b9b4925... [email protected] github.com
github.com/vitest-dev/vitest/releases/tag/v4.1.8 [email protected] github.com
github.com/vitest-dev/vitest/pull/10444 [email protected] github.com
github.com/vitest-dev/vitest/pull/10450 [email protected] github.com
github.com/vitest-dev/vitest/commit/e4067b3b150005fd42cf75f9943001192458... [email protected] github.com
github.com/vitest-dev/vitest/releases/tag/v5.0.0-beta.4 [email protected] github.com
github.com/vitest-dev/vitest/pull/10456 [email protected] github.com
github.com/vitest-dev/vitest/releases/tag/v3.2.5 [email protected] github.com
github.com/vitest-dev/vitest/security/advisories/GHSA-g8mr-85jm-7xhm [email protected] github.com
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