An information leak vulnerability exists in specific configurations of React Server Components versions 19.0.0, 19.0.1 19.1.0, 19.1.1, 19.1.2, 19.2.0 and 19.2.1, including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. A specifically crafted HTTP request sent to a vulnerable Server Function may unsafely return the source code of any Server Function. Exploitation requires the existence of a Server Function which explicitly or implicitly exposes a stringified argument.
{
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:facebook:react:*:*:*:*:*:*:*:*"
],
"extracted_events": [
{
"introduced": "19.0.0"
},
{
"fixed": "19.0.2"
},
{
"introduced": "19.1.0"
},
{
"fixed": "19.1.3"
},
{
"introduced": "19.2.0"
},
{
"fixed": "19.2.2"
}
],
"vendor_product": "facebook:react",
"source": "CPE_RANGE"
}
]
}{
"cpe": [
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],
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{
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}
],
"source": [
"CPE_RANGE",
"CPE_STRING"
]
}