# CVE-2025-67779

> CVE-2025-67779. CVSS 7.5 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2025-67779
Last updated: 2026-10-07T20:10:01Z

- Published: 2025-12-11 23:36 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: 20.0%, 97th percentile (scored 2026-10-25)
- CISA KEV: no

## Description

It was found that the fix addressing CVE-2025-55184 in React Server Components was incomplete and does not prevent a denial of service attack in a specific case. React Server Components versions 19.0.2, 19.1.3 and 19.2.2 are affected, allowing unsafe deserialization of payloads from HTTP requests to Server Function endpoints. This 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-2025-67779)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-67779)
- [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-2025-67779](https://www.facebook.com/security/advisories/cve-2025-67779)

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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-2025-67779 · Markdown: https://rewindex.com/cve/CVE-2025-67779.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-67779 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:00:50.840Z