CVE-2026-112942 (GCVE-0-2026-112942)
Vulnerability from cvelistv5 – Published: 2026-10-20 14:48 – Updated: 2026-10-20 14:48
VLAI
EPSS
VEX
Title
launch-editor: `fs.existsSync()` existence check can be bypassed on Windows
Summary
launch-editor allows users to open files with line numbers in editor from Node.js. Prior to 2.14.2, launch-editor-middleware processes an attacker-controlled Windows file argument where the file argument ends in a parent-directory component plus a line-and-column suffix: the path is resolved while the suffix is still present, and launch-editor removes the suffix before its existsSync check, leaving the existing parent directory for existsSync and allowing the attacker-controlled file argument to pass filename existence validation without requiring the malicious filename to exist. The bypass can lead to OS command injection when combined with the separately described Windows percent-expansion flaw. This issue is fixed in version 2.14.2.
Severity
CWE
- CWE-77 - Improper Neutralization of Special Elements used in a Command ('Command Injection')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/vitejs/launch-editor/security/… | x_refsource_CONFIRM |
| https://github.com/vitejs/launch-editor/commit/f1… | x_refsource_MISC |
| https://github.com/vitejs/launch-editor/releases/… | x_refsource_MISC |
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"product": "launch-editor",
"vendor": "vitejs",
"versions": [
{
"status": "affected",
"version": "\u003c 2.14.2"
}
]
},
{
"product": "vite",
"vendor": "vitejs",
"versions": [
{
"status": "affected",
"version": "\u003e= 8.3.0, \u003c 8.3.3"
},
{
"status": "affected",
"version": "\u003e= 8.2.0, \u003c 8.2.4"
},
{
"status": "affected",
"version": "\u003e= 8.0.0, \u003c 8.1.6"
},
{
"status": "affected",
"version": "\u003e= 7.0.0, \u003c 7.3.7"
},
{
"status": "affected",
"version": "\u003c 6.4.4"
}
]
},
{
"product": "vite-plus",
"vendor": "vitejs",
"versions": [
{
"status": "affected",
"version": "\u003c 1.1.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "launch-editor allows users to open files with line numbers in editor from Node.js. Prior to 2.14.2, launch-editor-middleware processes an attacker-controlled Windows file argument where the file argument ends in a parent-directory component plus a line-and-column suffix: the path is resolved while the suffix is still present, and launch-editor removes the suffix before its existsSync check, leaving the existing parent directory for existsSync and allowing the attacker-controlled file argument to pass filename existence validation without requiring the malicious filename to exist. The bypass can lead to OS command injection when combined with the separately described Windows percent-expansion flaw. This issue is fixed in version 2.14.2."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "ACTIVE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-77",
"description": "CWE-77: Improper Neutralization of Special Elements used in a Command (\u0027Command Injection\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-20T14:48:06.676Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/vitejs/launch-editor/security/advisories/GHSA-587h-7wmj-h5pm",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/vitejs/launch-editor/security/advisories/GHSA-587h-7wmj-h5pm"
},
{
"name": "https://github.com/vitejs/launch-editor/commit/f13cd835d4b8e860b1d4d080ad8a490cc2463679",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vitejs/launch-editor/commit/f13cd835d4b8e860b1d4d080ad8a490cc2463679"
},
{
"name": "https://github.com/vitejs/launch-editor/releases/tag/v2.14.2",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vitejs/launch-editor/releases/tag/v2.14.2"
}
],
"source": {
"advisory": "GHSA-587h-7wmj-h5pm",
"discovery": "UNKNOWN"
},
"title": "launch-editor: `fs.existsSync()` existence check can be bypassed on Windows"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-112942",
"datePublished": "2026-10-20T14:48:06.676Z",
"dateReserved": "2026-10-19T21:30:47.245Z",
"dateUpdated": "2026-10-20T14:48:06.676Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-112942",
"date": "2026-10-21",
"epss": "0.01329",
"percentile": "0.70772"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"product": "launch-editor",
"vendor": "vitejs",
"versions": [
{
"status": "affected",
"version": "\u003c 2.14.2"
}
]
},
{
"product": "vite",
"vendor": "vitejs",
"versions": [
{
"status": "affected",
"version": "\u003e= 8.3.0, \u003c 8.3.3"
},
{
"status": "affected",
"version": "\u003e= 8.2.0, \u003c 8.2.4"
},
{
"status": "affected",
"version": "\u003e= 8.0.0, \u003c 8.1.6"
},
{
"status": "affected",
"version": "\u003e= 7.0.0, \u003c 7.3.7"
},
{
"status": "affected",
"version": "\u003c 6.4.4"
}
]
},
{
"product": "vite-plus",
"vendor": "vitejs",
"versions": [
{
"status": "affected",
"version": "\u003c 1.1.0"
}
]
}
],
"source": "security-advisories@github.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "launch-editor allows users to open files with line numbers in editor from Node.js. Prior to 2.14.2, launch-editor-middleware processes an attacker-controlled Windows file argument where the file argument ends in a parent-directory component plus a line-and-column suffix: the path is resolved while the suffix is still present, and launch-editor removes the suffix before its existsSync check, leaving the existing parent directory for existsSync and allowing the attacker-controlled file argument to pass filename existence validation without requiring the malicious filename to exist. The bypass can lead to OS command injection when combined with the separately described Windows percent-expansion flaw. This issue is fixed in version 2.14.2."
}
],
"id": "CVE-2026-112942",
"lastModified": "2026-10-20T19:55:49.343",
"metrics": {
"cvssMetricV40": [
{
"cvssData": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"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": "ACTIVE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/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": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"source": "security-advisories@github.com",
"type": "Secondary"
}
]
},
"published": "2026-10-20T15:17:17.230",
"references": [
{
"source": "security-advisories@github.com",
"url": "https://github.com/vitejs/launch-editor/commit/f13cd835d4b8e860b1d4d080ad8a490cc2463679"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/vitejs/launch-editor/releases/tag/v2.14.2"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/vitejs/launch-editor/security/advisories/GHSA-587h-7wmj-h5pm"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-77"
}
],
"source": "security-advisories@github.com",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Important",
"current_release_date": "2026-10-20T21:30:53+00:00",
"cve": "CVE-2026-112942",
"id": "CVE-2026-112942",
"initial_release_date": "2026-10-20T14:48:06.676000+00:00",
"product_status:known_not_affected": "3",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "launch-editor: launch-editor: Command injection via improper file path validation",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-112942.json",
"version": "3"
}
}
}
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Nomenclature
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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