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CVE-2026-73653— Vitest: Browser Mode provider commands bypass the file-access permission gate

Quick assessment

Affected
vitest-dev vitest
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Vitest 是一个由 Vite 驱动测试框架。在版本 3.2.7、4.1.10 和 5.0.0-beta.6 之前，Browser Mode 提供者的命令（包括 upload、takeScreenshot、screenshotMatcher、stopChunkTrace、deleteTracing 和 annotateTraces）在未强制实施 权限控制或未限制路径到项目根目录的情况下，接受了由浏览器提供的文件路径。一个能够访问 Browser Mode API 的客户端可以读取任意本地文件，创建或覆盖图像和追踪

CVSS 9.4 · Critical EPSS 0.79% · P55

Affected Version Matrix 3

VendorProduct Version RangeStatus
vitest-dev vitest < 3.2.7 affected
>= 4.0.0, < 4.1.10 affected
>= 5.0.0-beta.1, < 5.0.0-beta.6 affected
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I. Basic Information for CVE-2026-73653

Vulnerability Information
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Vulnerability Title
Vitest: Browser Mode provider commands bypass the file-access permission gate
Source: CVE Program / CVE List V5
Vulnerability Description
Vitest is a testing framework powered by Vite. Prior to versions 3.2.7, 4.1.10, and 5.0.0-beta.6, Browser Mode provider commands including upload, takeScreenshot, screenshotMatcher, stopChunkTrace, deleteTracing, and annotateTraces accept browser-supplied file paths without enforcing the allowWrite permission gate or confining paths to the project root. A client that can reach the Browser Mode API can read arbitrary local files, create or overwrite image and trace files, or delete files accessible to the Vitest process even when allowWrite is false. This issue is fixed in versions 3.2.7, 4.1.10, and 5.0.0-beta.6.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
vitest-dev vitest < 3.2.7 -

II. Public POCs for CVE-2026-73653

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 12014 chars
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III. Intelligence Information for CVE-2026-73653

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Patches & Fixes for CVE-2026-73653 (6)

Vendor Advisories for CVE-2026-73653 (1)

Vendor Pages for CVE-2026-73653 (2)

Other References for CVE-2026-73653 (1)

IV. Related Vulnerabilities

Same product: vitest
Same vendor: vitest-dev
Same weakness: CWE-22

V. Comments for CVE-2026-73653

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