CVE-2025-55183
Last modified
CVE-2025-55183 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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. EPSS estimates a 62.41% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| 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 |
| React | >= 19.0.0, < 19.0.2 | |
| React | >= 19.1.0, < 19.1.3 | |
| React | >= 19.2.0, < 19.2.2 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
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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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