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CVE-2026-23864

⚠️ high
🔍 Scan for this CVE
Summary

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 co

Description

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.

CVSS Score
7.5
High
EPSS Score
0.9
Exploit Probability
Published Date
2026-01-26
First Seen: 2026-01-28
📊 Relative Risk Intelligence

This CVE is Moderate Risk - more severe than 69.4% of all 317,883 vulnerabilities in our database.

#97,299
Above average severity
Severity Percentile
🎯 CISA SSVC Assessment Updated: Jan 26, 2026
🔍 Exploitation Status
None
No known exploits
⚙️ Automatable
YES
Can be exploited automatically
💥 Technical Impact
Partial
Limited system impact
SSVC data provided by CISA
Last Modified 2026-02-13
Source NVD 🔗
CVSS Vector 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE IDs (Weakness Types)

📦 Affected Products 3

🔗 References 1

🔗 Related CVEs 5

CVE ID Severity CVSS EPSS Summary Published
CVE-2025-67779 ⚠️ high 7.5 0.1 It was found that the fix addressing CVE-2025-55184 in React Server Components was incomplete and does not prevent a den... 2025-12-12
CVE-2025-55183 🔶 medium 5.3 24.6 An information leak vulnerability exists in specific configurations of React Server Components versions 19.0.0, 19.0.1 1... 2025-12-11
CVE-2025-55184 ⚠️ high 7.5 20.7 A pre-authentication denial of service vulnerability exists in React Server Components versions 19.0.0, 19.0.1 19.1.0, 1... 2025-12-11
CVE-2025-55182 ⛔ critical 10.0 57.9 A pre-authentication remote code execution vulnerability exists in React Server Components versions 19.0.0, 19.1.0, 19.1... 2025-12-03
CVE-2018-6341 🔶 medium 6.1 16.7 React applications which rendered to HTML using the ReactDOMServer API were not escaping user-supplied attribute names a... 2018-12-31
These CVEs affect the same products