CVE-2025-55184
HIGHCVSS v3
7.5
HIGH
EPSS Score
23.6%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
A pre-authentication denial of service vulnerability exists in 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. The vulnerable code unsafely deserializes payloads from HTTP requests to Server Function endpoints, which can cause an infinite loop that hangs the server process and may prevent future HTTP requests from being served.
Technical Details
- CVSS v3 Vector
- 3.1
- Published
- 12/11/2025
- Last Modified
- 12/15/2025
Frequently Asked Questions
What is CVE-2025-55184?
A pre-authentication denial of service vulnerability exists in 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. The vulnerable code unsafely deserializes payloads from HTTP requests to Server Function endpoints, which can cause an infinite loop that hangs the server process and may prevent future HTTP requests from being served.
Is CVE-2025-55184 actively exploited?
Active exploitation of CVE-2025-55184 has not been confirmed. The EPSS score is 23.6%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2025-55184?
CVE-2025-55184 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string 3.1.
Is CVE-2025-55184 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.