CVEvulnerability
CVE-2026-23869
7.5 HIGH
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-04-08
- Last modified
- 2026-07-25
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-400, CWE-502, CWE-770
Description
A denial of service vulnerability exists in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack and react-server-dom-webpack (versions 19.0.0 through 19.0.4, 19.1.0 through 19.1.5, and 19.2.0 through 19.2.4). The vulnerability is triggered by sending specially crafted HTTP requests to Server Function endpoints.The payload of the HTTP request causes excessive CPU usage for up to a minute ending in a thrown error that is catchable.
Related
References
- https://github.com/facebook/react/security/advisories/GHSA-479c-33wc-g2pg github.com
- https://access.redhat.com/security/cve/CVE-2026-23869 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2456663 bugzilla.redhat.com
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23869.json security.access.redhat.com