CVE-2026-112945

Vite is a frontend tooling framework for JavaScript. Prior to 6.4.4, 7.3.7, 8.1.6, 8.2.4, and 8.3.3, applications using custom middleware are vulnerable when they pass an unchanged browser request URL to server.transformIndexHtml. getHtmlFilename uses the query-bearing request URL to resolve an existing local file while preserving attacker-supplied leading slashes in the generated proxy module URL. If the transformed HTML contains an inline module script and a victim browser loads the crafted development-server page, the leading double slash makes the browser fetch and execute an attacker-controlled module in the Vite-served page. This execution can expose sensitive page data or permit critical actions available to the affected application. This issue is fixed in versions 6.4.4, 7.3.7, 8.1.6, 8.2.4, and 8.3.3.

CVSS

No CVSS.

References

Link	Resource
https://github.com/vitejs/vite/commit/7dafd8e56f152403a3230608fa4005273c2e9e17
https://github.com/vitejs/vite/pull/23653
https://github.com/vitejs/vite/security/advisories/GHSA-9jrq-w75r-8gcw
https://github.com/vitejs/vite/security/advisories/GHSA-9jrq-w75r-8gcw

Configurations

No configuration.

History

28 Oct 2026, 15:17

Type	Values Removed	Values Added
References	~~() https://github.com/vitejs/vite/security/advisories/GHSA-9jrq-w75r-8gcw -~~	() https://github.com/vitejs/vite/security/advisories/GHSA-9jrq-w75r-8gcw -

20 Oct 2026, 16:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-20 16:17

Updated : 2026-10-28 15:17

NVD link : CVE-2026-112945

Mitre link : CVE-2026-112945

CVE.ORG link : CVE-2026-112945

JSON object : View

Products Affected

No product.

CWE

CWE-80

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

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