CVE-2026-49993: nuxt Exposed Dangerous Method or Function
Vulnerability summary
CVE-2026-49993 is a medium (CVSS 5.9) Exposed Dangerous Method or Function vulnerability in nuxt. EPSS estimates a 0.31% chance of exploitation in the next 30 days, higher than 22.2% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 0 · Related 1Timeline
- 12-06-2026PublishedVulnerability first disclosed.
- 12-06-2026Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · NpmEcosystem advisory · calculated5.9MediumCVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- NVDNIST5.9MediumCVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS trend
Probability
0.31%
Chance of exploitation in the next 30 days
Percentile
22%
Versus all other CVEs
30-day change
+0.03 pp
From 0.28% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundNuxt
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Nuxt3 products
- nuxt≥ 3.15.4, < 3.21.7 | ≥ 4.0.0, < 4.4.7
- nuxt\/rspack-builder≥ 3.15.4, < 3.21.7 | ≥ 4.0.0, < 4.4.7
- nuxt\/webpack-builder≥ 3.15.4, < 3.21.7 | ≥ 4.0.0, < 4.4.7
@nuxt2 products
- rspack-builder≥ 4.0.0, < 4.4.7 | ≥ 3.15.4, < 3.21.7
- webpack-builder≥ 4.0.0, < 4.4.7 | ≥ 3.15.4, < 3.21.7
2 vendors · 5 products
References
7 links- github.com/nuxt/nuxt/security/advisories/GHSA-x6qj-4h56-5rj5X Refsource CONFIRMWEBExploitMitigationPatchVendor Advisory
- github.com/nuxt/nuxt/security/advisories/GHSA-6m52-m754-pw2gX Refsource MISCWEBExploitMitigationPatchVendor Advisory
- github.com/nuxt/nuxtPACKAGE