CVE•Published 2026-06-12•Modified 2026-06-15•0 articles on news•6 live references•NVD data

CVE-2026-45670Nuxt · Nuxt\/rspack-builder

Vulnerability data via NVD (ingested)

CVSS v3.1

5.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

EPSS percentile

Exploit Prediction Scoring System · top 94% of all CVEs

Weaknesses (CWE)

CWE-749Exposed Dangerous Method or Function

Description

Nuxt is an open-source web development framework for Vue.js. In @nuxt/rspack-builder and @nuxt/webpack-builder versions 3.15.4 to before 3.21.6, and 4.0.0-alpha.1 to before 4.4.6, there is an incomplete fix for GHSA-4gf7-ff8x-hq99. Source code may 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 3.21.6 and 4.4.6.

Timeline

Published 2026-06-12

Modified 2026-06-15

External references

NVD MITRE Exploit-DB GitHub PoC trickest/cve VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-45670

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Nuxt Nuxt\/rspack-builder"

All exposed Nuxt Nuxt\/rspack-builder instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Nuxt\/rspack-builder"

HTTP body or banner mentions "Nuxt\/rspack-builder" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-45670