CVE-2026-23870

EUVD-2026-27867
A denial of service vulnerability could be triggered by sending specially crafted HTTP requests to server function endpoints, this could lead to server crashes, out-of-memory exceptions or excessive CPU usage; affecting the following packages: react-server-dom-webpack, react-server-dom-parcel, react-server-dom-turbopack (versions 19.0.0 through 19.0.5, 19.1.0 through 19.1.6, and 19.2.0 through 19.2.5).
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 73.66%
Affected Products (NVD)
VendorProductVersion
facebookreact-server-dom-parcel
19.0.0 ≤
𝑥
≤ 19.0.5
facebookreact-server-dom-parcel
19.1.0 ≤
𝑥
≤ 19.1.6
facebookreact-server-dom-parcel
19.2.0 ≤
𝑥
≤ 19.2.5
facebookreact-server-dom-turbopack
19.0.0 ≤
𝑥
≤ 19.0.5
facebookreact-server-dom-turbopack
19.1.0 ≤
𝑥
≤ 19.1.6
facebookreact-server-dom-turbopack
19.2.0 ≤
𝑥
≤ 19.2.5
facebookreact-server-dom-webpack
19.0.0 ≤
𝑥
≤ 19.0.5
facebookreact-server-dom-webpack
19.1.0 ≤
𝑥
≤ 19.1.6
facebookreact-server-dom-webpack
19.2.0 ≤
𝑥
≤ 19.2.5
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/facebook/react/security/advisories/GHSA-rv78-f8rc-xrxh