Riskcovery

CVE-2026-23869

State
Published
Severity
7.5 High
Published
Apr 8, 2026
Updated
Jul 15, 2026
Reserved
Jan 16, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HMeta
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hredhat-SADP

Weaknesses

  • CWE-502 Deserialization of Untrusted Data
  • CWE-400 Uncontrolled Resource Consumption
  • CWE-770 Allocation of Resources Without Limits or Throttling

Affected Products

ProductVersions
react-server-dom-turbopackMeta
  • 19.0.0 through 19.0.4Affected
  • 19.1.0 through 19.1.5Affected
  • 19.2.0 through 19.2.4Affected
react-server-dom-parcelMeta
  • 19.0.0 through 19.0.4Affected
  • 19.1.0 through 19.1.5Affected
  • 19.2.0 through 19.2.4Affected
react-server-dom-webpackMeta
  • 19.0.0 through 19.0.4Affected
  • 19.1.0 through 19.1.5Affected
  • 19.2.0 through 19.2.4Affected

References

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