PT-2026-30926 · Vite · Vite

Ochk0 + 1 · Published 2026-04-06 · Updated 2026-05-19 · CVE-2026-39365

Positive Technologies (AI Summary)

CVSS v4.0

6.3

Medium

Base vector

AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions Vite versions 6.0.0 through 6.4.1, 7.3.2, and 8.0.5

Description The Vite dev server improperly handles .map requests for optimized dependencies. It resolves file paths and calls readFile without restricting '../' segments in the URL, potentially allowing bypass of the server.fs.strict allow list and retrieval of .map files located outside the project root if they are valid source map JSON. This could expose sensitive content if the server is exposed to the network and predictable paths to .map files exist.

Recommendations Update to Vite version 6.4.2 or later, 7.3.2, or 8.0.5.

Fix

Path traversal

Information Disclosure

Weakness Enumeration

CWE-22

CWE-200

Related Identifiers

CVE-2026-39365

GHSA-4W7W-66W2-5VF9

Affected Products

Vite

References · 12

• https://github.com/vitejs/vite/security/advisories/GHSA-4w7w-66w2-5vf9 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-APP-NPM-CVE-2026-39365 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-4w7w-66w2-5vf9 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-39365 · Security Note
• https://github.com/vitejs/vite · Note
• https://github.com/vitejs/vite/commit/79f002f2286c03c88c7b74c511c7f9fc6dc46694 · Note
• https://github.com/vitejs/vite/pull/22161 · Note
• https://github.com/vitejs/vite/releases/tag/v6.4.2 · Note
• https://github.com/vitejs/vite/releases/tag/v8.0.5 · Note
• https://github.com/vitejs/vite/releases/tag/v7.3.2 · Note
• https://twitter.com/CVEnew/status/2041603144828789062 · Twitter Post
• https://twitter.com/pdnuclei_bot/status/2041697571639587015 · Twitter Post