Description
It was found that the fix addressing CVE-2025-55184 in React Server Components was incomplete and does not prevent a denial of service attack in a specific case. React Server Components versions 19.0.2, 19.1.3 and 19.2.2 are affected, allowing unsafe deserialization of payloads from HTTP requests to Server Function endpoints. This can cause an infinite loop that hangs the server process and may prevent future HTTP requests from being served.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected products
- Meta / react-server-dom-parcel19.0.2 – 19.0.2
- Meta / react-server-dom-parcel19.1.3 – 19.1.3
- Meta / react-server-dom-parcel19.2.2 – 19.2.2
- Meta / react-server-dom-turbopack19.0.2 – 19.0.2
- Meta / react-server-dom-turbopack19.1.3 – 19.1.3
- Meta / react-server-dom-turbopack19.2.2 – 19.2.2
- Meta / react-server-dom-webpack19.0.2 – 19.0.2
- Meta / react-server-dom-webpack19.1.3 – 19.1.3
- Meta / react-server-dom-webpack19.2.2 – 19.2.2
Updated 46m ago · 2 sources