PatchTheCVECVE-2026-18348: Missing authorization check in the upload_azure, upload_sftp, and upload_smb VQL plugins allows an authenticat
CVE-2026-18348 is a medium-severity flaw (CVSS 4.1) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- No elevated risk signals yet
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 4.1 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | High |
| User interaction | None |
| EPSS exploit chance | 0.3% (top 74%) |
| CISA exploited list | No |
| Weakness | CWE-863 |
| Published | 2026-08-11 |
| Last modified | 2026-10-23 |
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-18348?
No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.
Is CVE-2026-18348 being exploited?
CVE-2026-18348 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-18348 affect?
CVE-2026-18348 affects affected software. Severity is medium (CVSS 4.1). 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 NET
How urgent is CVE-2026-18348?
Priority 21/100. No elevated risk signals yet.