High severityOSV Advisory· Published Dec 11, 2025· Updated Dec 12, 2025
CVE-2025-67779
CVE-2025-67779
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.
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 | >= 19.0.2, < 19.0.3 | 19.0.3 |
react-server-dom-parcelnpm | >= 19.1.3, < 19.1.4 | 19.1.4 |
react-server-dom-parcelnpm | >= 19.2.2, < 19.2.3 | 19.2.3 |
react-server-dom-turbopacknpm | >= 19.0.2, < 19.0.3 | 19.0.3 |
react-server-dom-turbopacknpm | >= 19.1.3, < 19.1.4 | 19.1.4 |
react-server-dom-turbopacknpm | >= 19.2.2, < 19.2.3 | 19.2.3 |
react-server-dom-webpacknpm | >= 19.0.2, < 19.0.3 | 19.0.3 |
react-server-dom-webpacknpm | >= 19.1.3, < 19.1.4 | 19.1.4 |
react-server-dom-webpacknpm | >= 19.2.2, < 19.2.3 | 19.2.3 |
Affected products
4- ghsa-coords3 versions
>= 19.0.2, < 19.0.3+ 2 more
- (no CPE)range: >= 19.0.2, < 19.0.3
- (no CPE)range: >= 19.0.2, < 19.0.3
- (no CPE)range: >= 19.0.2, < 19.0.3
Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-7gmr-mq3h-m5h9ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-67779ghsaADVISORY
- github.com/facebook/react/security/advisories/GHSA-2m3v-v2m8-q956ghsaWEB
- github.com/facebook/react/security/advisories/GHSA-7gmr-mq3h-m5h9ghsaWEB
- 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-2025-67779mitrex_refsource_CONFIRM
News mentions
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