CVE-2026-47429 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-47429MEDIUM

vitest-dev vitest — Vitest: Arbitrary file can be read and executed when Vitest UI server is listening

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   H   N   N  U  H  N  N    5.9   .0092   57.5     —

AFFECTED
  Product  Versions   Fixed
  vitest   < 3.2.5 –  —

TIMELINE
  May 19  Reserved by GitHub_M
  Jul 14  EXPLOIT PUBLISHED — CVE-2026-47429 (vitest-dev vitest). Public exploit reference added.
  Jul 14  Published (CNA: GitHub_M)
  Aug 6   EXPLOIT PUBLISHED — CVE-2026-47429 (vitest-dev vitest). Public exploit reference added.
  Aug 6   RESCORED — CVE-2026-47429 (vitest-dev vitest). CVSS 9.8 → 5.9 (NVD).

CWE-22 · CNA: GitHub_M · CVSS v3.1 · 7 references · NVD status: Analyzed

Description

Vitest is a testing framework powered by Vite. Prior to 3.2.5 and 4.1.0, the Vitest UI/API server on Windows used isFileServingAllowed incorrectly for /__vitest_attachment__, allowing \\?\\..\\ path traversal to read files outside the project; exposed API write and rerun features such as saveTestFile and rerun could also allow arbitrary script execution. This issue is fixed in versions 3.2.5 and 4.1.0.

Lifecycle

Complete event history — 5 events, chronological
Date	Event	Detail
May 19, 2026	Reserved	Reserved by GitHub_M
July 14, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-47429 (vitest-dev vitest). Public exploit reference added.
July 14, 2026	Published	Published (CNA: GitHub_M)
August 6, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-47429 (vitest-dev vitest). Public exploit reference added.
August 6, 2026	RESCORED	RESCORED — CVE-2026-47429 (vitest-dev vitest). CVSS 9.8 → 5.9 (NVD).

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
vitest-dev	vitest	—	< 3.2.5	—

Weaknesses

CWE-22

References (7)

https://github.com/vitest-dev/vitest/commit/20e00ef7808de6d330c5e2fda530f686e08f1c8d [Patch]
https://github.com/vitest-dev/vitest/commit/af88b1f5d82844a4761ea9a977156c98e2b14ca8 [Patch]
https://github.com/vitest-dev/vitest/pull/10445 [Exploit, Issue Tracking, Patch]
https://github.com/vitest-dev/vitest/pull/9350 [Exploit, Issue Tracking, Patch]
https://github.com/vitest-dev/vitest/releases/tag/v3.2.5 [Release Notes]
https://github.com/vitest-dev/vitest/releases/tag/v4.1.0 [Release Notes]
https://github.com/vitest-dev/vitest/security/advisories/GHSA-5xrq-8626-4rwp [Exploit, Mitigation, Vendor Advisory]

Authoritative record: CVE-2026-47429 at cve.org

Vendors: vitest-dev

Weaknesses: CWE-22

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-47429 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.