High severityOSV Advisory· Published Dec 11, 2025· Updated Dec 15, 2025
CVE-2025-55184
CVE-2025-55184
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
react-server-dom-parcelnpm | >= 19.0.0, < 19.0.2 | 19.0.2 |
react-server-dom-turbopacknpm | >= 19.0.0, < 19.0.2 | 19.0.2 |
react-server-dom-webpacknpm | >= 19.0.0, < 19.0.2 | 19.0.2 |
react-server-dom-parcelnpm | >= 19.1.0, < 19.1.3 | 19.1.3 |
react-server-dom-parcelnpm | >= 19.2.0, < 19.2.2 | 19.2.2 |
react-server-dom-turbopacknpm | >= 19.1.0, < 19.1.3 | 19.1.3 |
react-server-dom-turbopacknpm | >= 19.2.0, < 19.2.2 | 19.2.2 |
react-server-dom-webpacknpm | >= 19.1.0, < 19.1.3 | 19.1.3 |
react-server-dom-webpacknpm | >= 19.2.0, < 19.2.2 | 19.2.2 |
Affected products
4- ghsa-coords3 versions
>= 19.0.0, < 19.0.2+ 2 more
- (no CPE)range: >= 19.0.0, < 19.0.2
- (no CPE)range: >= 19.0.0, < 19.0.2
- (no CPE)range: >= 19.0.0, < 19.0.2
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-2m3v-v2m8-q956ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-55184ghsaADVISORY
- github.com/facebook/react/security/advisories/GHSA-2m3v-v2m8-q956ghsaWEB
- react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-componentsghsax_refsource_CONFIRMWEB
- www.facebook.com/security/advisories/cve-2025-55184ghsax_refsource_CONFIRMWEB
News mentions
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