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GHSA-wx67-qw84-cm4g: react-server-dom: Denial of Service in Server Functions

highCVSS 7.5CVE-2026-44907
Impact A denial of service vulnerability could be triggered by sending specially crafted HTTP requests to server function endpoints, this could lead to out-of-memory exceptions or excessive CPU usage. We recommend updating immediately. The vulnerability exists in versions 19.0.0 through 19.0.7, 19.1.0 through 19.1.8, and 19.2.0 through 19.2.7 of: - react-server-dom-webpack - react-server-dom-parcel - react-server-dom-turbopack Patches Fixes were back ported to versions 19.0.8, 19.1.9, and 19.2.8. If you are using any of the above packages please upgrade to any of the fixed versions immediately. If your app’s React code does not use a server, your app is not affected by this vulnerability. If your app does not use a framework, bundler, or bundler plugin that supports React Server Components, your app is not affected by this vulnerability.

Details

Source
GitHub Security Advisories (INTL · database · site)
Severity
high — CVSS 7.5
Published
2026-07-24
Last updated
2026-07-24
Exploitation
Not in CISA KEV at last sync

Original advisory: https://github.com/advisories/GHSA-wx67-qw84-cm4g

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-44907coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

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