CVEvulnerability

CVE-2026-39363

8.2 HIGH Published 2026-04-07 Modified 2026-08-25 Official page ↗
Status
Modified
Published
2026-04-07
Last modified
2026-08-25
Assigner
[email protected]
CVSS 4.0 ([email protected])
8.2 HIGH — CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-1220, CWE-200, CWE-306

Description

Vite is a frontend tooling framework for JavaScript. From 6.0.0 to before 6.4.2, 7.3.2, and 8.0.5, if it is possible to connect to the Vite dev server’s WebSocket without an Origin header, an attacker can invoke fetchModule via the custom WebSocket event vite:invoke and combine file://... with ?raw (or ?inline) to retrieve the contents of arbitrary files on the server as a JavaScript string (e.g., export default "..."). The access control enforced in the HTTP request path (such as server.fs.allow) is not applied to this WebSocket-based execution path. This vulnerability is fixed in 6.4.2, 7.3.2, and 8.0.5.

Affected configurations

• vitejs vite (>= 6.0.0 <= 6.4.1) • vitejs vite (>= 7.0.0 <= 7.3.1) • vitejs vite (>= 8.0.0 <= 8.0.4) • voidzero vite\+ (<= 0.1.15)

Related

Weakness · CWE (3)

  • CWE-1220 Insufficient Granularity of Access Control weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness
  • CWE-306 Missing Authentication for Critical Functionality weakness

References