SCA: security update for @nuxt/rspack-builder, @nuxt/webpack-builder (GHSA-x6qj-4h56-5rj5)

medium Tenable Cloud Security Plugin ID 443341

Description

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

- Nuxt is an open-source web development framework for Vue.js. In @nuxt/rspack-builder and @nuxt/webpack-
builder from versions 3.15.4 to before 3.21.7 and 4.0.0 to before 4.4.7, there is an incomplete fix for
GHSA-6m52-m754-pw2g. Source code may still be stolen during dev when using the webpack / rspack builder if
the dev server is bound to a non-loopback address (e.g. nuxt dev --host) and the developer opens a
malicious site on the same network. This issue has been patched in versions 3.21.7 and 4.4.7.
(CVE-2026-49993)

Solution

Update the @nuxt/rspack-builder library and its related packages to version 3.21.7 or later.

See Also

https://github.com/advisories/GHSA-x6qj-4h56-5rj5

Plugin Details

Severity: Medium

ID: 443341

Version: Revision 1.2

Type: Local

Family: SCA Checks

Published: 6/17/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.76

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.8

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

CVSS Score Source: CVE-2026-49993

CVSS v3

Risk Factor: Medium

Base Score: 5.7

Temporal Score: 5.1

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

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

CVSS v4

Risk Factor: Medium

Base Score: 5.9

Threat Score: 5

Threat Vector: CVSS:4.0/E:P

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/16/2026

Vulnerability Publication Date: 6/12/2026

Reference Information

CVE: CVE-2026-49993

cwe: CWE-749