Rapid7 Velociraptor Improper Input Validation in Client Message Handler
Rapid7 Velociraptor versions prior to 0.76.2 contain an improper input validation vulnerability in the client monitoring message handler on the Velociraptor server (primarily Linux) that allows an authenticated remote attacker to write to arbitrary internal server queues via a crafted monitoring message with a malicious queue name. The server handler that receives client monitoring messages does not sufficiently validate the queue name supplied by the client, allowing a rogue client to write arbitrary messages to privileged internal queues. This may lead to remote code execution on the Velociraptor server. Rapid7 Hosted Velociraptor instances are not affected by this vulnerability.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-5329
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 08:05 UTC · Revision 1
Source evidence
Rapid7 Velociraptor Improper Input Validation in Client Message Handler
core-osv · Original sourcePublished 9 Apr 2026, 17:52 UTC
Rapid7 Velociraptor versions prior to 0.76.2 contain an improper input validation vulnerability in the client monitoring message handler on the Velociraptor server (primarily Linux) that allows an authenticated remote attacker to write to arbitrary internal server queues via a crafted monitoring message with a malicious queue name. The server handler that receives client monitoring messages does not sufficiently validate the queue name supplied by the client, allowing a rogue client to write arbitrary messages to privileged internal queues. This may lead to remote code execution on the Velociraptor server. Rapid7 Hosted Velociraptor instances are not affected by this vulnerability.
osv:CVE-2026-5329
Complete source record
{
"id": "921df851675112e07bcf542afe76c4bab17eb93c4969a7ca027e846ae2ec53f6",
"url": "https://osv.dev/vulnerability/CVE-2026-5329",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Rapid7 Velociraptor Improper Input Validation in Client Message Handler",
"summary": "Rapid7 Velociraptor versions prior to 0.76.2 contain an improper input validation vulnerability in the client monitoring message handler on the Velociraptor server (primarily Linux) that allows an authenticated remote attacker to write to arbitrary internal server queues via a crafted monitoring message with a malicious queue name. The server handler that receives client monitoring messages does not sufficiently validate the queue name supplied by the client, allowing a rogue client to write arbitrary messages to privileged internal queues. This may lead to remote code execution on the Velociraptor server. Rapid7 Hosted Velociraptor instances are not affected by this vulnerability.",
"evidence": "osv:CVE-2026-5329",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-5329",
"aliases": [
"CVE-2026-5329"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/velocidex/velociraptor",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "0e657d636acc37961b85c60b23abdf231b34f861"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"last_affected": "0.75.6"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"cpe": "cpe:2.3:a:rapid7:velociraptor:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "0.75.6"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v0.75.6",
"v0.75.5",
"v0.75.2",
"v0.75.1",
"v0.75",
"v0.74",
"v0.73",
"v0.72",
"v0.7.0",
"v0.7.0-rc1",
"v0.6.8-rc1",
"v0.6.7-rc1",
"v0.6.4-rc1",
"v0.6.3-rc1",
"v0.6.2-rc1",
"v0.6.1-rc1",
"v0.6.0-rc1",
"v0.5.9-rc1",
"v0.5.8-rc1",
"v0.5.7",
"v0.5.6",
"v0.5.5-1",
"v0.5.5",
"v0.5.4",
"v0.5.3",
"v0.5.2",
"v0.5.1",
"v0.5.0",
"v0.4.9",
"v0.4.8",
"v0.4.7",
"v0.4.6",
"v0.4.5",
"v0.4.4",
"v0.4.3",
"v0.4.2",
"v0.4.1",
"v0.4.0",
"v0.3.9",
"v0.3.8",
"v0.3.7",
"v0.3.6",
"v0.3.5",
"v0.3.4",
"v0.3.3",
"v0.3.2",
"v0.3.1",
"v0.3.0",
"0.2.9",
"0.2.8",
"0.2.7",
"0.2.6",
"0.2.5",
"0.2.4",
"0.2.3",
"0.2.2",
"0.2.1",
"v0.1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-5329.json"
}
}
],
"modified": "2026-10-28T02:30:33.614602685Z",
"provider": "osv",
"references": [
"https://docs.velociraptor.app/announcements/advisories/cve-2026-5329/",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/5xxx/CVE-2026-5329.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-5329",
"https://github.com/Velocidex/velociraptor"
],
"provider_metadata": {
"cwe_ids": [
"CWE-20"
],
"cna_assigner": "rapid7",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"last_affected": "0.76.3"
},
{
"last_affected": "0.74.6"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
}
]
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/5xxx/CVE-2026-5329.json"
}
},
"related_cves": [
{
"value": "CVE-2026-5329",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 501049,
"published_at": "2026-04-09T17:52:05.885+00:00"
}