description: "CVE-2026-18860 is a High (8.7) vulnerability: Velociraptor allows multi-tenant deployments named 'Orgs'.. This entry ships a detection-only PoC and a Docker test lab." keywords: "CVE-2026-18860, CVE-2026-18860 detection, CVE-2026-18860 poc, Velociraptor allows multi-tenant deployments named "Orgs"."
CVE-2026-18860 — Velociraptor allows multi-tenant deployments named "Orgs".¶
Key facts
CVE-2026-18860 is a High (8.7) vulnerability: Velociraptor allows multi-tenant deployments named "Orgs".. This entry ships a detection-only PoC and a Docker test lab.
| CVE | CVE-2026-18860 |
| Severity | High (8.7) |
| Detection / prevention | — |
| PoC | poc.py |
| Source | 2026/CVE-2026-18860/ |
Details¶
English | 한국어
Description¶
Velociraptor allows multi-tenant deployments named "Orgs".
By default Velociraptor, uses the ROOT org, but users can create child orgs for other tenants within the same deployment.
Users can have different permissions in each org. To manage Orgs, Velociraptor usually examines the ORG_ADMIN permission on the ROOT org.
This issue results from the Velociraptor server allowing for the deletion of Orgs by incorrectly checking the ORG_ADMIN permission of callers within the calling ORG instead of the ROOT org. However, Org admins of child orgs were able to add this permission to their ACL token within their own org. This allows an administrator in a child org, which is not also an administrator in the ROOT org, to delete other orgs.
Vulnerability Details¶
| Property | Value |
|---|---|
| CVE ID | CVE-2026-18860 |
| CVSS Score | 8.7 |
Proof of Concept¶
Download¶
# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2026/CVE-2026-18860/poc.py
Usage¶
# Run PoC against target
python3 poc.py --target <TARGET_URL>
# With authentication
python3 poc.py --target <TARGET_URL> --username <USER> --password <PASS>
⚠️ Warning: This PoC is for authorized security testing only. It uses detection-only techniques and does not exploit or damage target systems.
Test Lab¶
This repository includes a Docker-based test environment with both vulnerable and patched applications.
Quick Start¶
# Clone and navigate to CVE directory
cd CVE-2026-18860
# Start both applications
docker-compose up -d
# Run tests
./run-tests.sh # Linux/Mac
./run-tests.ps1 # Windows PowerShell
Application Endpoints¶
| Application | URL | Status |
|---|---|---|
| Vulnerable App | http://localhost:8080 | Shows vulnerability |
| Patched App | http://localhost:8081 | Demonstrates fix |
Directory Structure¶
├── README.md # English documentation
├── README_KO.md # Korean documentation
├── poc.py # PoC detection script
├── docker-compose.yml # Container orchestration
├── run-tests.sh # Linux/Mac test runner
├── run-tests.ps1 # Windows test runner
├── vulnerable-app/ # Vulnerable version
│ ├── app.py
│ ├── Dockerfile
│ └── requirements.txt
└── patched-app/ # Fixed version
├── app.py
├── Dockerfile
└── requirements.txt
References¶
- https://docs.velociraptor.app/announcements/advisories/cve-2026-18860/
- https://github.com/Velocidex/velociraptor/commit/dc38bd6a7e12a678cd79e726bdd1ded4eed75967
Generated by PoC Generator on 2026-08-12T02:29:09.921515077
Frequently asked questions¶
What is CVE-2026-18860?¶
CVE-2026-18860 is a High (8.7) vulnerability: Velociraptor allows multi-tenant deployments named "Orgs".. This entry ships a detection-only PoC and a Docker test lab.
How do I detect CVE-2026-18860?¶
Run the detection-only PoC included with this entry against your Docker test lab to confirm whether a target is affected; pair it with your own IDS logging.
How do I block or mitigate CVE-2026-18860?¶
Upgrade to a fixed version per the vendor advisory; the NVD record lists the affected versions. Use the included PoC to verify your remediation.
For authorized security testing and research only. See the full source and NVD record.