Vitest is a testing framework powered by Vite. From 3.0.0 until 3.2.5, 4.1.8, and 5.0.0-beta.4, Vitest Browser Mode exposed a cdp() API that forwarded raw Chrome DevTools Protocol methods without being gated by allowWrite or allowExec, allowing a remote client with exposed browser API metadata to use CDP Page.setDownloadBehavior and Runtime.evaluate to overwrite vite.config.ts and execute attacker-controlled Node.js code. This issue is fixed in versions 3.2.5, 4.1.8, and 5.0.0-beta.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53633.json",
"cwe_ids": [
"CWE-749",
"CWE-862"
],
"cna_assigner": "GitHub_M"
}{
"extracted_events": [
{
"introduced": "3.0.0"
},
{
"fixed": "3.2.5"
},
{
"introduced": "4.0.0"
},
{
"fixed": "4.1.8"
},
{
"introduced": "5.0.0-beta.0"
},
{
"fixed": "5.0.0-beta.4"
}
],
"source": [
"AFFECTED_FIELD",
"REFERENCES"
]
}