Detections
Analytics

SCA: security update for react-router (GHSA-chx6-hx7r-mcp5)

high Tenable Cloud Security Plugin ID 445289

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - React Router is a router for React. In versions 7.0.0 through 7.17.0, the manifest endpoint could be
 accessed via unauthenticated targeted requests that would put heavy load on the server and slow down
 response times. This issue is a follow up to CVE-2026-42342, and does not does not impact React Router
 applications using Declarative Mode (<BrowserRouter>) or Data Mode (createBrowserRouter/<RouterProvider>).
 This issue has been fixed in version 7.18.0. (CVE-2026-55685)

Solution

Update the react-router library and its related packages to version 7.18.0 or later.

See Also

https://github.com/advisories/GHSA-chx6-hx7r-mcp5

Plugin Details

Severity: High

ID: 445289

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 7/24/2026

Updated: 8/4/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.74

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-55685

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 7/24/2026

Vulnerability Publication Date: 7/24/2026

Reference Information

CVE: CVE-2026-55685