CVE-2025-55184
Last modified
CVE-2025-55184 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 65.59% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| React | >= 19.0.0, < 19.0.2 | |
| React | >= 19.1.0, < 19.1.3 | |
| React | >= 19.2.0, < 19.2.2 | |
| Vercel | Next.Js | >= 13.3.0, < 14.2.35 |
| Vercel | Next.Js | >= 15.0.0, < 15.0.7 |
| Vercel | Next.Js | >= 15.1.0, < 15.1.11 |
| Vercel | Next.Js | >= 15.2.0, < 15.2.8 |
| Vercel | Next.Js | >= 15.3.0, < 15.3.8 |
| Vercel | Next.Js | >= 15.4.0, < 15.4.10 |
| Vercel | Next.Js | >= 15.5.0, < 15.5.9 |
| Vercel | Next.Js | >= 16.0.0, < 16.0.10 |
| Vercel | Next.Js | 15.6.0 |
| Vercel | Next.Js | 16.1.0 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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