Medium severity · published Aug 11, 2026
CVE-2026-18348
Velociraptor NETWORK ACL bypass via upload_azure / upload_sftp / upload_smb VQL plugins
4.1
CVSS
0.3%
EPSS
No
On KEV
Description
Missing authorization check in the upload_azure, upload_sftp, and upload_smb VQL plugins allows an authenticated analyst-role user can initiate attacker-controlled outbound network connections from the Velociraptor server, bypassing the NETWORK ACL permission boundary. This enables internal network reconnaissance via port oracle and potential data exfiltration to external endpoints.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 27% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VE
Velociraptor · Rapid7
before 0.77.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-18348
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-18348
docs.velociraptor.app
http://docs.velociraptor.app/announcements/advisories/cve-2026-18348/
github.com
https://github.com/Velocidex/velociraptor/commit/48824fb51a2bdba832abc281e719ecbed74736df
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