Vitest is a testing framework powered by Vite. From 4.0.17 until 4.1.6 and 5.0.0-beta.3, Vitest Browser Mode served /vitest_test/ with the otelCarrier query parameter inserted directly into an inline module script, allowing a crafted browser-runner URL to execute arbitrary JavaScript in the Vitest server origin and recover VITEST_API_TOKEN for authenticated API calls. This issue is fixed in versions 4.1.6 and 5.0.0-beta.3.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-79"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47428.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "4.0.17"
},
{
"fixed": "4.1.6"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"introduced": "5.0.0-beta.0"
},
{
"fixed": "5.0.0-beta.3"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "18af98cee1830604d57f6a02bf28f8067cdffc06"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "3514f9fa135c90e1c35754fc4d27c9cf351faafa"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "v4.1.6",
"range": [
{
"fixed": "a8fd24c1cad2320b19fcc651413c7d928423bdc1"
}
],
"source": "REFERENCES_TAG"
},
{
"original_tag": "v5.0.0-beta.3",
"range": [
{
"fixed": "0f274d0d645e874952d13ec27c4a9f6ff6aa57a1"
}
],
"source": "REFERENCES_TAG"
}
]
}