CVE-2026-18348
Velociraptor NETWORK ACL bypass via upload_azure / upload_sftp / upload_smb VQL plugins
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.
INFO
Published Date :
Aug. 11, 2026, 6:17 a.m.
Last Modified :
Aug. 11, 2026, 6:17 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 9974b330-7714-4307-a722-5648477acda7 | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Apply stricter authorization checks in VQL plugins.
- Limit user privileges for network-initiated actions.
- Review and configure network access controls.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-18348.
| URL | Resource |
|---|---|
| http://docs.velociraptor.app/announcements/advisories/cve-2026-18348/ | |
| https://github.com/Velocidex/velociraptor/commit/48824fb51a2bdba832abc281e719ecbed74736df |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-18348 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-18348
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-18348 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-18348 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Aug. 11, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://github.com/Velocidex/velociraptor/', 'vendor': 'Rapid7', 'product': 'Velociraptor', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '0.77.2', 'versionType': 'semver'}], 'platforms': ['Linux'], 'packageName': 'Velociraptor', 'defaultStatus': 'unaffected'}] Added 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. Added CVSS V3.1 AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N Added CWE CWE-863 Added Reference http://docs.velociraptor.app/announcements/advisories/cve-2026-18348/ Added Reference https://github.com/Velocidex/velociraptor/commit/48824fb51a2bdba832abc281e719ecbed74736df