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Vulnerability record · CVE-2026-53633 · published 14 July 2026

CVE-2026-53633: Missing authorization vulnerability

Vitest 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.

9.8 CVSS 3.1 Critical EPSS 0.90% · top 42.1% CWE-749 · CWE-749CWE-862 · Missing authorization Awaiting Analysis
9.8CVSS 3.1 base score
0.90%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
10References
29 Jul 2026Last modified by NVD

Description

Vitest 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.

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

References

LinkTags
https://github.com/vitest-dev/vitest/commit/385a1aefd4c2bfa5e7d58bf7c6834c929969f2c7
https://github.com/vitest-dev/vitest/commit/63e3b2eee4d58da56786a6333f517b9b492528c7
https://github.com/vitest-dev/vitest/commit/e4067b3b150005fd42cf75f994300119245806b9
https://github.com/vitest-dev/vitest/pull/10444
https://github.com/vitest-dev/vitest/pull/10450
https://github.com/vitest-dev/vitest/pull/10456
https://github.com/vitest-dev/vitest/releases/tag/v3.2.5
https://github.com/vitest-dev/vitest/releases/tag/v4.1.8
https://github.com/vitest-dev/vitest/releases/tag/v5.0.0-beta.4
https://github.com/vitest-dev/vitest/security/advisories/GHSA-g8mr-85jm-7xhm

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Source: NIST National Vulnerability Database (record CVE-2026-53633), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.