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vuln-cve/data/2026/41xxx/CVE-2026-41704.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-41704",
"assignerOrgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d",
"state": "PUBLISHED",
"assignerShortName": "vmware",
"dateReserved": "2026-04-22T06:21:34.489Z",
"datePublished": "2026-05-27T07:13:15.525Z",
"dateUpdated": "2026-05-27T13:39:01.678Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d",
"shortName": "vmware",
"dateUpdated": "2026-05-27T07:13:15.525Z"
},
"title": "Compromised VM can make arbitrary blobstore deletes",
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"description": "CWE-284 Improper Access Control",
"cweId": "CWE-284",
"type": "CWE"
}
]
}
],
"impacts": [
{
"descriptions": [
{
"lang": "en",
"value": "A compromised managed VM can delete arbitrary blobs from the shared Director blobstore by supplying crafted IDs in NATS reply messages, due to missing UUID-format, ownership, and namespace validation."
}
]
}
],
"affected": [
{
"vendor": "Cloud Foundry Foundation",
"product": "BOSH Director",
"versions": [
{
"version": "0",
"lessThan": "282.1.12",
"status": "affected",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
}
],
"descriptions": [
{
"lang": "en",
"value": "AgentClient#handle_method (lines 264-303) processes every NATS reply. It calls inject_compile_log (line 273) on every response, which reads response['value']['result']['compile_log_id'] (line 332-338) and passes it to download_and_delete_blob. Separately, any response containing 'exception' goes through format_exception (lines 308-325), which reads exception['blobstore_id'] and also calls download_and_delete_blob. That helper (lines 344-349) calls ResourceManager#get_resource(blob_id) and, in an ensure block, ResourceManager#delete_resource(blob_id). ResourceManager (resource_manager.rb:62-70) calls blobstore.delete(id) on the single shared Director blobstore with no UUID-format check, no ownership check, and no namespace prefix.\n\nAffected versions:\nBOSH Director: All versions prior to v282.1.12",
"supportingMedia": [
{
"type": "text/html",
"base64": false,
"value": "AgentClient#handle_method (lines 264-303) processes every NATS reply. It calls inject_compile_log (line 273) on every response, which reads response[&#39;value&#39;][&#39;result&#39;][&#39;compile_log_id&#39;] (line 332-338) and passes it to download_and_delete_blob. Separately, any response containing &#39;exception&#39; goes through format_exception (lines 308-325), which reads exception[&#39;blobstore_id&#39;] and also calls download_and_delete_blob. That helper (lines 344-349) calls ResourceManager#get_resource(blob_id) and, in an ensure block, ResourceManager#delete_resource(blob_id). ResourceManager (resource_manager.rb:62-70) calls blobstore.delete(id) on the single shared Director blobstore with no UUID-format check, no ownership check, and no namespace prefix.<br><br>Affected versions:<br>BOSH Director: All versions prior to v282.1.12"
}
]
}
],
"references": [
{
"url": "https://www.cloudfoundry.org/blog/cve-2026-41704-compromised-vm-can-make-arbitrary-blobstore-deletes/"
}
],
"metrics": [
{
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
],
"cvssV3_1": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:N/I:H/A:N",
"attackVector": "LOCAL",
"attackComplexity": "HIGH",
"privilegesRequired": "HIGH",
"userInteraction": "REQUIRED",
"scope": "CHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"availabilityImpact": "NONE",
"baseScore": 5,
"baseSeverity": "MEDIUM"
},
"cvssV4_0": {
"version": "4.0",
"vectorString": "CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:H",
"attackVector": "LOCAL",
"attackComplexity": "HIGH",
"attackRequirements": "NONE",
"privilegesRequired": "HIGH",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "HIGH",
"vulnAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"subAvailabilityImpact": "HIGH",
"exploitMaturity": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED",
"baseScore": 6.8,
"baseSeverity": "MEDIUM"
}
}
],
"source": {
"discovery": "UNKNOWN"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-05-27T13:38:50.006289Z",
"id": "CVE-2026-41704",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-05-27T13:39:01.678Z"
}
}
]
}
}