FKIE_CVE-2026-49993
Vulnerability from fkie_nvd - Published: 2026-06-12 14:16 - Updated: 2026-06-17 10:55
Severity
Summary
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.
References
| URL | Tags | ||
|---|---|---|---|
| security-advisories@github.com | https://github.com/nuxt/nuxt/commit/77187ee4015e9267fb464951542a3e09e8b5fa05 | Patch | |
| security-advisories@github.com | https://github.com/nuxt/nuxt/commit/e351de943e82db16970618b60dc7fdbaa58630f3 | Patch | |
| security-advisories@github.com | https://github.com/nuxt/nuxt/pull/35200 | Issue Tracking | |
| security-advisories@github.com | https://github.com/nuxt/nuxt/security/advisories/GHSA-6m52-m754-pw2g | Exploit, Mitigation, Patch, Vendor Advisory | |
| security-advisories@github.com | https://github.com/nuxt/nuxt/security/advisories/GHSA-x6qj-4h56-5rj5 | Exploit, Mitigation, Patch, Vendor Advisory | |
| 134c704f-9b21-4f2e-91b3-4a467353bcc0 | https://github.com/nuxt/nuxt/security/advisories/GHSA-6m52-m754-pw2g | Exploit, Mitigation, Patch, Vendor Advisory | |
| 134c704f-9b21-4f2e-91b3-4a467353bcc0 | https://github.com/nuxt/nuxt/security/advisories/GHSA-x6qj-4h56-5rj5 | Exploit, Mitigation, Patch, Vendor Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| nuxt | nuxt\/rspack-builder | * | |
| nuxt | nuxt\/rspack-builder | * | |
| nuxt | nuxt\/webpack-builder | * | |
| nuxt | nuxt\/webpack-builder | * |
{
"affected": [
{
"affectedData": [
{
"product": "nuxt",
"vendor": "nuxt",
"versions": [
{
"status": "affected",
"version": "\u003e= 3.15.4, \u003c 3.21.7"
},
{
"status": "affected",
"version": "\u003e= 4.0.0, \u003c 4.4.7"
}
]
}
],
"source": "security-advisories@github.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:nuxt:nuxt\\/rspack-builder:*:*:*:*:*:node.js:*:*",
"matchCriteriaId": "A50747DC-3BEB-4D07-90A7-FA88D3C487E2",
"versionEndExcluding": "3.21.7",
"versionStartIncluding": "3.15.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:nuxt:nuxt\\/rspack-builder:*:*:*:*:*:node.js:*:*",
"matchCriteriaId": "7CBB2D98-3150-4502-AFD6-F8600B1B996B",
"versionEndExcluding": "4.4.7",
"versionStartIncluding": "4.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:nuxt:nuxt\\/webpack-builder:*:*:*:*:*:node.js:*:*",
"matchCriteriaId": "0A7E01F0-0E99-4674-B9A1-56F58C0B9C6B",
"versionEndExcluding": "3.21.7",
"versionStartIncluding": "3.15.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:nuxt:nuxt\\/webpack-builder:*:*:*:*:*:node.js:*:*",
"matchCriteriaId": "E916A1BE-6D79-41DD-8CF7-4615411EBC6A",
"versionEndExcluding": "4.4.7",
"versionStartIncluding": "4.0.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"id": "CVE-2026-49993",
"lastModified": "2026-06-17T10:55:49.903",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.1,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"cvssMetricV40": [
{
"cvssData": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "HIGH",
"attackRequirements": "PRESENT",
"attackVector": "ADJACENT",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "PASSIVE",
"valueDensity": "NOT_DEFINED",
"vectorString": "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/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",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"source": "security-advisories@github.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-49993",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-12T13:42:10.549608Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-06-12T14:16:32.650",
"references": [
{
"source": "security-advisories@github.com",
"tags": [
"Patch"
],
"url": "https://github.com/nuxt/nuxt/commit/77187ee4015e9267fb464951542a3e09e8b5fa05"
},
{
"source": "security-advisories@github.com",
"tags": [
"Patch"
],
"url": "https://github.com/nuxt/nuxt/commit/e351de943e82db16970618b60dc7fdbaa58630f3"
},
{
"source": "security-advisories@github.com",
"tags": [
"Issue Tracking"
],
"url": "https://github.com/nuxt/nuxt/pull/35200"
},
{
"source": "security-advisories@github.com",
"tags": [
"Exploit",
"Mitigation",
"Patch",
"Vendor Advisory"
],
"url": "https://github.com/nuxt/nuxt/security/advisories/GHSA-6m52-m754-pw2g"
},
{
"source": "security-advisories@github.com",
"tags": [
"Exploit",
"Mitigation",
"Patch",
"Vendor Advisory"
],
"url": "https://github.com/nuxt/nuxt/security/advisories/GHSA-x6qj-4h56-5rj5"
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"tags": [
"Exploit",
"Mitigation",
"Patch",
"Vendor Advisory"
],
"url": "https://github.com/nuxt/nuxt/security/advisories/GHSA-6m52-m754-pw2g"
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"tags": [
"Exploit",
"Mitigation",
"Patch",
"Vendor Advisory"
],
"url": "https://github.com/nuxt/nuxt/security/advisories/GHSA-x6qj-4h56-5rj5"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-749"
}
],
"source": "security-advisories@github.com",
"type": "Secondary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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