Detections
Analytics

SCA: security update for react-router (GHSA-337j-9hxr-rhxg)

medium Tenable Cloud Security Plugin ID 445226

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 6.4.0 through 7.17.0, if application code was written in a
 way that allows attacker-supplied input to overwrite certain aspects of errors caught by the SSR process,
 then it was possible for an attacker to trigger unexpected constructor execution on the client, which
 would in turn trigger an outbound network request. This is only possible with very specific (and unlikely)
 application-layer code. Note that this does not impact an application if it is using Declarative Mode. It
 only impacts Framework Mode and Data Mode applications that perform manual SSR/hydration. This issue has
 been fixed in version 7.18.0. (CVE-2026-53666)

Solution

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

See Also

https://github.com/advisories/GHSA-337j-9hxr-rhxg

Plugin Details

Severity: Medium

ID: 445226

Version: Revision 1.3

Type: Local

Family: SCA Checks

Published: 7/24/2026

Updated: 7/28/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 2.3

Percentile: 9.7

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2026-53666

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 7/23/2026

Vulnerability Publication Date: 7/23/2026

Reference Information

CVE: CVE-2026-53666

cwe: CWE-470