# CVE-2025-55184

> CVE-2025-55184. CVSS 7.5 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2025-55184
Last updated: 2026-10-07T20:10:01Z

- Published: 2025-12-11 20:05 UTC · Updated: 2026-10-07 20:10 UTC · Assigner: Meta
- CVSS: 7.5 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS: 66.6%, 99th percentile (scored 2026-10-25)
- CISA KEV: no

## 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.

## Affected vendors and products

- Meta: react-server-dom-parcel
- Meta: react-server-dom-turbopack
- Meta: react-server-dom-webpack

## Tracked companies

- [Vercel](https://rewindex.com/company/vercel.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-55184)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-55184)
- [https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components](https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components)
- [https://www.facebook.com/security/advisories/cve-2025-55184](https://www.facebook.com/security/advisories/cve-2025-55184)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2025-55184 · Markdown: https://rewindex.com/cve/CVE-2025-55184.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-55184 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:17:11.086Z