Nuxt up to 3.21.5/4.4.5 routine

CVSS Meta Temp Score
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CTI Interest Score
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2.5$0-$5k4.54-

Summaryinfo

A vulnerability classified as problematic has been found in Nuxt up to 3.21.5/4.4.5. Affected by this vulnerability is an unknown functionality. This manipulation causes routine. The identification of this vulnerability is CVE-2026-45670. The attack needs to be done within the local network. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Nuxt up to 3.21.5/4.4.5 and classified as problematic. Affected by this vulnerability is some unknown processing. The manipulation with an unknown input leads to a routine vulnerability. The CWE definition for the vulnerability is CWE-749. The product provides an Applications Programming Interface (API) or similar interface for interaction with external actors, but the interface includes a dangerous method or function that is not properly restricted. As an impact it is known to affect confidentiality. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-45670 since 05/12/2026. The exploitation appears to be difficult. Access to the local network is required for this attack to succeed. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 3.21.6 or 4.4.6 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 2.6
VulDB Meta Temp Score: 2.5

VulDB Base Score: 2.6
VulDB Temp Score: 2.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Routine
CWE: CWE-749
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Nuxt 3.21.6/4.4.6

Timelineinfo

05/12/2026 CVE reserved
06/12/2026 +31 days Advisory disclosed
06/12/2026 +0 days VulDB entry created
06/12/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-45670 (🔒)
GCVE (CVE): GCVE-0-2026-45670
GCVE (VulDB): GCVE-100-370579

Entryinfo

Created: 06/12/2026 15:50
Changes: 06/12/2026 15:50 (64)
Complete: 🔍
Cache ID: 216::103

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