CVE-2026-23869
Last modified
CVE-2026-23869 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 1.55% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| 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 |
| Meta | react-server-dom-webpack | >= 19.0.0, <= 19.0.4; >= 19.1.0, <= 19.1.5; >= 19.2.0, <= 19.2.4 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-23869?
How severe is CVE-2026-23869?
How do I fix CVE-2026-23869?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-23862Dell ThinOS 10 versions prior to ThinOS 2602_10.0573, contai…7.8
- CVE-2026-23863An attachment spoofing issue in WhatsApp for Windows prior t…6.5
- CVE-2026-23864Multiple denial of service vulnerabilities exist in React Se…7.5
- CVE-2026-23865An integer overflow in the tt_var_load_item_variation_store …5.3
- CVE-2026-23866Incomplete validation of AI rich response messages for Insta…4.3
- CVE-2026-23868Giflib contains a double-free vulnerability that is the resu…5.1
- CVE-2026-2387The Event Organiser plugin for WordPress is vulnerable to St…6.4
- CVE-2026-23870A denial of service vulnerability could be triggered by send…7.5
- CVE-2026-23873hustoj is an open source online judge based on PHP/C++/MySQL…9
- CVE-2026-23874ImageMagick is free and open-source software used for editin…5.5
- CVE-2026-23875CrawlChat is an open-source, AI-powered platform that transf…5.4
- CVE-2026-23876ImageMagick is free and open-source software used for editin…9.8
Are you affected by CVE-2026-23869?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST