๐Ÿ” CVE Alert

CVE-2026-23864

HIGH 7.5
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th

Multiple denial of service vulnerabilities exist in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack, react-server-dom-webpack. The vulnerabilities are triggered by sending specially crafted HTTP requests to Server Function endpoints, and could lead to server crashes, out-of-memory exceptions or excessive CPU usage; depending on the vulnerable code path being exercised, the application configuration and application code. Strongly consider upgrading to the latest package versions to reduce risk and prevent availability issues in applications using React Server Components.

Vendor meta
Product react-server-dom-webpack
Published Jan 26, 2026
Last Updated Jun 30, 2026
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Affected Versions

Meta / react-server-dom-webpack
19.0.0 < 19.0.4 19.1.0 < 19.1.5 19.2.0 < 19.2.4
Meta / react-server-dom-turbopack
19.0.0 < 19.0.4 19.1.0 < 19.1.5 19.2.0 < 19.2.4
Meta / react-server-dom-parcel
19.0.0 < 19.0.4 19.1.0 < 19.1.5 19.2.0 < 19.2.4

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
facebook.com: https://www.facebook.com/security/advisories/cve-2026-23864 access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-23864 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2433059 security.access.redhat.com: https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23864.json access.redhat.com: https://access.redhat.com/errata/RHSA-2026:13571