Vite: Cross origin script execution through Vite custom middleware
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.
CVE-2026-112945
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-112945
vite
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
vite-plus
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "vitejs",
"product": "vite",
"versions": [
{
"status": "affected",
"version": ">= 8.3.0, < 8.3.3"
},
{
"status": "affected",
"version": ">= 8.2.0, < 8.2.4"
},
{
"status": "affected",
"version": ">= 8.0.0, < 8.1.6"
},
{
"status": "affected",
"version": ">= 7.0.0, < 7.3.7"
},
{
"status": "affected",
"version": "< 6.4.4"
}
]
},
{
"vendor": "vitejs",
"product": "vite-plus",
"versions": [
{
"status": "affected",
"version": "< 1.1.0"
}
]
}
]- Related CVEs
- CVE-2026-112945
Source reference:
/cveMetadata/cveId
Publisher severity
low
Source reference: /containers/cna/metrics
- Event
- #42249 · Revision 1
- Added to Heist Feed
- Publisher date