195 lines
8.0 KiB
JSON
195 lines
8.0 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2026-86540",
|
|
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "VulnCheck",
|
|
"dateReserved": "2026-09-07T22:18:47.705Z",
|
|
"datePublished": "2026-09-07T23:03:18.654Z",
|
|
"dateUpdated": "2026-09-24T14:21:24.010Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"providerMetadata": {
|
|
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
|
|
"shortName": "VulnCheck",
|
|
"dateUpdated": "2026-09-24T14:21:24.010Z"
|
|
},
|
|
"datePublic": "2026-08-16T00:00:00.000Z",
|
|
"title": "knowns before 0.30.0 Arbitrary Code Execution via LSP Binary",
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "knowns versions before 0.30.0 fail to validate the settings.lsp.languages binary field in project configuration files, allowing attackers to execute arbitrary binaries by crafting a malicious .knowns/config.json file. When a repository with a crafted configuration is opened, the unvalidated binary path is executed twice under the user's account without any verification."
|
|
}
|
|
],
|
|
"problemTypes": [
|
|
{
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"description": "Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')",
|
|
"cweId": "CWE-78",
|
|
"type": "CWE"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"vendor": "knowns-dev",
|
|
"product": "knowns",
|
|
"defaultStatus": "unaffected",
|
|
"packageURL": "pkg:npm/knowns",
|
|
"versions": [
|
|
{
|
|
"version": "0",
|
|
"status": "affected",
|
|
"versionType": "semver",
|
|
"lessThan": "0.30.0"
|
|
},
|
|
{
|
|
"version": "0.30.0",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"format": "CVSS",
|
|
"cvssV4_0": {
|
|
"version": "4.0",
|
|
"vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
|
|
"attackVector": "LOCAL",
|
|
"attackComplexity": "LOW",
|
|
"attackRequirements": "NONE",
|
|
"privilegesRequired": "NONE",
|
|
"userInteraction": "PASSIVE",
|
|
"vulnConfidentialityImpact": "HIGH",
|
|
"vulnIntegrityImpact": "HIGH",
|
|
"vulnAvailabilityImpact": "HIGH",
|
|
"subConfidentialityImpact": "NONE",
|
|
"subIntegrityImpact": "NONE",
|
|
"subAvailabilityImpact": "NONE",
|
|
"baseScore": 8.5,
|
|
"baseSeverity": "HIGH"
|
|
}
|
|
},
|
|
{
|
|
"format": "CVSS",
|
|
"cvssV3_1": {
|
|
"version": "3.1",
|
|
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
|
|
"attackVector": "LOCAL",
|
|
"attackComplexity": "LOW",
|
|
"privilegesRequired": "NONE",
|
|
"userInteraction": "REQUIRED",
|
|
"scope": "UNCHANGED",
|
|
"confidentialityImpact": "HIGH",
|
|
"integrityImpact": "HIGH",
|
|
"availabilityImpact": "HIGH",
|
|
"baseScore": 7.8,
|
|
"baseSeverity": "HIGH"
|
|
}
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://github.com/knowns-dev/knowns/security/advisories/GHSA-mc52-mwq4-vfx3",
|
|
"tags": [
|
|
"vendor-advisory"
|
|
],
|
|
"name": "GitHub Security Advisory (GHSA-mc52-mwq4-vfx3)"
|
|
},
|
|
{
|
|
"url": "https://github.com/knowns-dev/knowns/blob/v0.29.1/internal/lsp/detect.go#L128-L157",
|
|
"tags": [
|
|
"technical-description"
|
|
],
|
|
"name": "Detector.resolve executes the unvalidated binary override (v0.29.1)"
|
|
},
|
|
{
|
|
"url": "https://github.com/knowns-dev/knowns/blob/v0.29.1/internal/models/config.go#L205-L216",
|
|
"tags": [
|
|
"technical-description"
|
|
],
|
|
"name": "ProjectSettings.Validate does not inspect the LSP binary field (v0.29.1)"
|
|
},
|
|
{
|
|
"url": "https://github.com/knowns-dev/knowns/commit/d3989829fb5095666d23d005b2f78a082832a396",
|
|
"tags": [
|
|
"patch"
|
|
],
|
|
"name": "knowns fix commit d3989829fb50"
|
|
},
|
|
{
|
|
"url": "https://github.com/knowns-dev/knowns/releases/tag/v0.30.0",
|
|
"tags": [
|
|
"release-notes"
|
|
],
|
|
"name": "knowns v0.30.0 Release Notes"
|
|
},
|
|
{
|
|
"name": "VulnCheck Advisory: knowns before 0.30.0 Arbitrary Code Execution via LSP Binary",
|
|
"tags": [
|
|
"third-party-advisory"
|
|
],
|
|
"url": "https://www.vulncheck.com/advisories/knowns-before-0.30.0-arbitrary-code-execution-via-lsp-binary"
|
|
}
|
|
],
|
|
"credits": [
|
|
{
|
|
"lang": "en",
|
|
"value": "Tong Hoang Gia (uziii2208)",
|
|
"type": "finder"
|
|
},
|
|
{
|
|
"lang": "en",
|
|
"value": "Nguyen Huy Hoang (hoanggxyuuki)",
|
|
"type": "finder"
|
|
}
|
|
],
|
|
"x_generator": {
|
|
"engine": "vulncheck-endgame"
|
|
}
|
|
},
|
|
"adp": [
|
|
{
|
|
"metrics": [
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"timestamp": "2026-09-08T13:48:43.528505Z",
|
|
"id": "CVE-2026-86540",
|
|
"options": [
|
|
{
|
|
"Exploitation": "poc"
|
|
},
|
|
{
|
|
"Automatable": "no"
|
|
},
|
|
{
|
|
"Technical Impact": "total"
|
|
}
|
|
],
|
|
"role": "CISA Coordinator",
|
|
"version": "2.0.3"
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"title": "CISA ADP Vulnrichment",
|
|
"providerMetadata": {
|
|
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
|
"shortName": "CISA-ADP",
|
|
"dateUpdated": "2026-09-08T13:48:56.891Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |