An improper limitation of a pathname to a restricted directory ('path traversal') vulnerability in Desktop API in Synology DiskStation Manager (DSM) before 7.2.1-69057-10, 7.2.2-72806-7 and 7.3.2-86009-2 allows remote attackers to write limited files and conduct limited denial-of-service attacks.
PUBLISHED5.2CWE-22
Problem type
Affected products
Synology
DiskStation Manager (DSM)
< 7.3.2-86009-2 - AFFECTED
< 7.2.2-72806-7 - AFFECTED
< 7.2.1-69057-10 - AFFECTED
< 7.2.1 - UNKNOWN
References
GitHub Security Advisories
GHSA-m49g-9jxp-9jqm
An improper limitation of a pathname to a restricted directory ('path traversal') vulnerability...
https://github.com/advisories/GHSA-m49g-9jxp-9jqmAn improper limitation of a pathname to a restricted directory ('path traversal') vulnerability in Desktop API in Synology DiskStation Manager (DSM) before 7.2.1-69057-10, 7.2.2-72806-7 and 7.3.2-86009-2 allows remote attackers to write limited files and conduct limited denial-of-service attacks.
JSON source
https://cveawg.mitre.org/api/cve/CVE-2026-40535Click to expand
{
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"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-40535",
"assignerOrgId": "db201096-a0cc-46c7-9a55-61d9e221bf01",
"assignerShortName": "synology",
"dateUpdated": "2026-09-18T08:28:55.263Z",
"dateReserved": "2026-04-14T01:01:14.607Z",
"datePublished": "2026-09-18T08:28:55.263Z",
"state": "PUBLISHED"
},
"containers": {
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"dateUpdated": "2026-09-18T08:28:55.263Z"
},
"descriptions": [
{
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"value": "An improper limitation of a pathname to a restricted directory ('path traversal') vulnerability in Desktop API in Synology DiskStation Manager (DSM) before 7.2.1-69057-10, 7.2.2-72806-7 and 7.3.2-86009-2 allows remote attackers to write limited files and conduct limited denial-of-service attacks."
}
],
"affected": [
{
"vendor": "Synology",
"product": "DiskStation Manager (DSM)",
"defaultStatus": "affected",
"versions": [
{
"version": "7.3",
"status": "affected",
"versionType": "semver",
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},
{
"version": "7.2.2",
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},
{
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},
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"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"description": "Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')",
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"type": "CWE"
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],
"references": [
{
"url": "https://www.synology.com/en-global/security/advisory/Synology_SA_26_06",
"name": "Synology-SA-26:06 DSM",
"tags": [
"vendor-advisory"
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"metrics": [
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"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"availabilityImpact": "LOW",
"baseScore": 6.5,
"baseSeverity": "MEDIUM"
}
}
],
"credits": [
{
"lang": "en",
"value": "Warisse Valentin (Aytio)",
"type": "finder"
}
]
}
}
}