CVE-2026-18638

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Source
https://cve.org/CVERecord?id=CVE-2026-18638
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-18638.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-18638
Published
2026-08-11T15:00:53Z
Modified
2026-08-30T03:30:47Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Velociraptor server crash via the SetPassword API
Details

Any authenticated Velociraptor user — including one holding only the readerrole — can terminate the entire server process with a single request, by calling SetPassword with a username that does not exist.

Database specific 
{
    "cna_assigner": "rapid7",
    "cwe_ids": [
        "CWE-476",
        "CWE-703"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/18xxx/CVE-2026-18638.json"
}
References

Affected packages

Git / github.com/velocidex/velociraptor

Affected ranges

Type
GIT
Repo
https://github.com/velocidex/velociraptor
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
c0c9dd609140139efcb37c47e2afa79ed57e6c84
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.77.2"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

0.*
0.2.1
0.2.2
0.2.3
0.2.4
0.2.5
0.2.6
0.2.7
0.2.8
0.2.9
v0.*
v0.1
v0.3.0
v0.3.1
v0.3.2
v0.3.3
v0.3.4
v0.3.5
v0.3.6
v0.3.7
v0.3.8
v0.3.9
v0.4.0
v0.4.1
v0.4.2
v0.4.3
v0.4.4
v0.4.5
v0.4.6
v0.4.7
v0.4.8
v0.4.9
v0.5.0
v0.5.1
v0.5.2
v0.5.3
v0.5.4
v0.5.5
v0.5.5-1
v0.5.6
v0.5.7
v0.5.8-rc1
v0.5.9-rc1
v0.6.0-rc1
v0.6.1-rc1
v0.6.2-rc1
v0.6.3-rc1
v0.6.4-rc1
v0.6.7-rc1
v0.6.8-rc1
v0.7.0
v0.7.0-rc1
v0.72
v0.73
v0.74
v0.75
v0.76.1-rc1
v0.77.1
v0.77.1-rc1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-18638.json"