177 lines
7.4 KiB
JSON
177 lines
7.4 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-82649",
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"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"state": "PUBLISHED",
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"assignerShortName": "VulnCheck",
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"dateReserved": "2026-08-30T13:38:00.101Z",
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"datePublished": "2026-08-30T14:33:31.723Z",
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"dateUpdated": "2026-09-01T14:05:54.992Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"shortName": "VulnCheck",
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"dateUpdated": "2026-08-30T14:33:31.723Z"
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},
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"datePublic": "2026-08-16T00:00:00.000Z",
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"title": "SiYuan before 3.8.1 Local Privilege Escalation via Uncontrolled Search Path",
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"descriptions": [
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{
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"lang": "en",
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"value": "SiYuan Windows installer before version 3.8.1 (affected versions >= 2.0.14) contains an uncontrolled search path element vulnerability in its NSIS installer, which invokes system executables such as TASKKILL by name rather than by absolute path. Because NSIS nsExec::Exec resolves these calls using a search path that includes the installer's own launch directory ahead of System32, an attacker who plants a malicious executable (e.g., a renamed TASKKILL.exe) in that directory can have it executed when the installer runs. These calls occur in electron-builder's preInit hook before the license page is displayed, and with an all-users (elevated) install the planted binary executes with an elevated token, resulting in local privilege escalation."
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"description": "Uncontrolled Search Path Element",
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"cweId": "CWE-427",
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"type": "CWE"
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}
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]
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}
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],
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"affected": [
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{
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"vendor": "siyuan-note",
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"product": "siyuan",
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"defaultStatus": "unaffected",
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"versions": [
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{
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"version": "2.0.14",
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"status": "affected",
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"versionType": "semver",
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"lessThan": "3.8.1"
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},
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{
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"version": "3.8.1",
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"status": "unaffected",
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"versionType": "semver"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.0.14",
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"versionEndExcluding": "3.8.1"
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}
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]
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}
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]
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}
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],
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"metrics": [
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{
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"format": "CVSS",
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"cvssV4_0": {
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"version": "4.0",
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"vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
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"attackVector": "LOCAL",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"privilegesRequired": "LOW",
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"userInteraction": "PASSIVE",
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"vulnConfidentialityImpact": "HIGH",
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"vulnIntegrityImpact": "HIGH",
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"vulnAvailabilityImpact": "HIGH",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"baseScore": 7,
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"baseSeverity": "HIGH"
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}
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}
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],
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"references": [
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{
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"url": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-9j65-967f-5rv3",
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"tags": [
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"vendor-advisory"
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],
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"name": "GitHub Security Advisory (GHSA-9j65-967f-5rv3)"
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},
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{
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"url": "https://github.com/siyuan-note/siyuan/commit/251596fc0de2f9528c00c224252fd073a99973f4",
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"tags": [
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"patch"
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],
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"name": "Patch Commit"
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},
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{
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"name": "VulnCheck Advisory: SiYuan before 3.8.1 Local Privilege Escalation via Uncontrolled Search Path",
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"tags": [
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"third-party-advisory"
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],
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"url": "https://www.vulncheck.com/advisories/siyuan-before-3.8.1-local-privilege-escalation-via-uncontrolled-search-path"
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}
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],
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"credits": [
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{
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"lang": "en",
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"value": "pl4nty",
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"type": "reporter"
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}
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],
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"x_generator": {
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"engine": "vulncheck-endgame"
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}
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},
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"adp": [
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{
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"references": [
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{
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"url": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-9j65-967f-5rv3",
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"tags": [
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"exploit"
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]
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}
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],
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-09-01T14:05:25.276556Z",
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"id": "CVE-2026-82649",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "yes"
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},
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{
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"Technical Impact": "total"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-09-01T14:05:54.992Z"
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}
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}
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]
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}
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} |