Detections
Analytics
SCA: security update for react-server-dom-parcel, react-server-dom-turbopack, react-server-dom-webpack (GHSA-xqc2-xf4c-x3h3)
critical Tenable Cloud Security Plugin ID 478936
Description
There are packages installed that are affected by a vulnerability referenced in the following CVE:- React is a JavaScript library for building user interfaces. From 19.0.0 until 19.0.9, 19.1.10, 19.2.9, and
19.3.1, the react-server-dom-webpack, react-server-dom-parcel, and react-server-dom-turbopack packages are
vulnerable to unauthenticated remote code execution through crafted payloads targeting frameworks that
support React Server Components. The vulnerability only affects extremely rare cases where responses
transport multiple typed arrays and an attacker-controlled value. Applications whose React code does not
use a server are not affected. Applications that do not use a framework, bundler, or bundler plugin that
supports React Server Components are not affected. This issue is fixed in versions 19.0.9, 19.1.10,
19.2.9, and 19.3.1. (CVE-2026-126187)
Solution
Update the react-server-dom-parcel library and its related packages to version 19.0.9 or later.See Also
Plugin Details
Severity: Critical
ID: 478936
Version: Revision 1.1
Type: Local
Family: SCA Checks
Published: 11/11/2026
Updated: 11/11/2026
Risk Information
Vendor
Vendor Severity: Critical
CVSS v2
Risk Factor: High
Base Score: 7.5
Temporal Score: 5.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS Score Source: CVE-2026-126187
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS v4
Risk Factor: Critical
Base Score: 9.5
Threat Score: 8.2
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:N
Vulnerability Information
Exploit Ease: No known exploits are available
Patch Publication Date: 11/10/2026
Vulnerability Publication Date: 11/10/2026
Reference Information
CVE: CVE-2026-126187
cwe: CWE-502