CVE-2026-85057 — ZITADEL is an open source identity management platform.¶
Key facts
CVE-2026-85057 is a High (8.7) vulnerability: ZITADEL is an open source identity management platform.. This entry ships a detection-only PoC and a Docker test lab.
| CVE | CVE-2026-85057 |
| Severity | High (8.7) |
| Detection / prevention | — |
| PoC | poc.py |
| Source | 2026/CVE-2026-85057/ |
Details¶
English | 한국어
Description¶
ZITADEL is an open source identity management platform. From 3.0.0 until 3.4.13 and 4.16.1, ZITADEL Actions V1 enables the goja Node-compatible require() registry without restricting its filesystem source loader. An organization Action author with ORG_OWNER, org.action.write, and org.flow.write permissions can run JavaScript at OIDC, SAML, and login-flow trigger points and load files readable by the ZITADEL server process. This can disclose mounted configuration and secrets, including credentials stored through ZITADEL_FIRSTINSTANCE_LOGINCLIENTPATPATH or ZITADEL_FIRSTINSTANCE_MACHINEKEYPATH, and recovered bootstrap credentials can enable escalation from an organization administrator to an instance administrator. The issue affects Actions V1, and host command execution is not established. This issue is fixed in versions 3.4.13 and 4.16.1.
Vulnerability Details¶
| Property | Value |
|---|---|
| CVE ID | CVE-2026-85057 |
| Type | RCE |
| CVSS Score | 8.7 |
Proof of Concept¶
Download¶
# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2026/CVE-2026-85057/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-2026-85057
# 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://github.com/zitadel/zitadel/commit/afe108640cf57a17e8b743fbcdad9ae636eb3eb7
- https://github.com/zitadel/zitadel/commit/baf6ed501b684f47048553d9034e8d3aa824950e
- https://github.com/zitadel/zitadel/commit/e28d6bcc033368c3e9683ee15c195b8460b9305d
- https://github.com/zitadel/zitadel/releases/tag/v3.4.13
- https://github.com/zitadel/zitadel/releases/tag/v4.16.1
- https://github.com/zitadel/zitadel/security/advisories/GHSA-fgmf-7rf8-m6vf
Generated by PoC Generator on 2026-09-27T10:54:44.009404834
Frequently asked questions¶
What is CVE-2026-85057?¶
CVE-2026-85057 is a High (8.7) vulnerability: ZITADEL is an open source identity management platform.. This entry ships a detection-only PoC and a Docker test lab.
How do I detect CVE-2026-85057?¶
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-2026-85057?¶
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.