Description
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.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected products
- Meta / react-server-dom-parcel19.2.0 – 19.2.1
- Meta / react-server-dom-parcel19.0.0 – 19.0.1
- Meta / react-server-dom-parcel19.1.0 – 19.1.2
- Meta / react-server-dom-turbopack19.1.0 – 19.1.2
- Meta / react-server-dom-turbopack19.0.0 – 19.0.1
- Meta / react-server-dom-turbopack19.2.0 – 19.2.1
- Meta / react-server-dom-webpack19.0.0 – 19.0.1
- Meta / react-server-dom-webpack19.2.0 – 19.2.1
- Meta / react-server-dom-webpack19.1.0 – 19.1.2