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…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 66.9%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 66.88% probability · 99th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Affected
- facebook/react · vercel/next.js
- Source
- cve-assign@fb.com
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.