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CVE-2026-94606 — authentik is an open-source identity provider.

Key facts

CVE-2026-94606 is a High (8.9) vulnerability: authentik is an open-source identity provider.. This entry ships a detection-only PoC and a Docker test lab.
CVE CVE-2026-94606
Severity High (8.9)
Detection / prevention —
PoC poc.py
Source 2026/CVE-2026-94606/

Details

English | 한국어

Description

authentik is an open-source identity provider. Prior to 2026.2.7, 2026.5.7, and 2026.8.2, authentik email authenticator enrollment during an authentication or enrollment flow accepts a recipient address supplied in the setup request instead of using the address already established by the flow. An actor who knows a target user's password can substitute an attacker-controlled address, receive the one-time code, and finish enrolling the factor as the target. The target must not have enrolled the email factor already. Successful enrollment gives the actor a session as the target and access to single sign-on applications behind the account. Other authenticator types are not affected. This issue is fixed in versions 2026.2.7, 2026.5.7, and 2026.8.2.

Vulnerability Details

Property Value
CVE ID CVE-2026-94606
Type RCE
CVSS Score 8.9

Proof of Concept

Download

# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2026/CVE-2026-94606/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-2026-94606

# 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.goauthentik.io/releases/2026.2#fixed-in-202627
  • https://docs.goauthentik.io/releases/2026.5#fixed-in-202657
  • https://docs.goauthentik.io/releases/2026.8#fixed-in-202682
  • https://github.com/goauthentik/authentik/commit/01d4349f2aaa9beda532f92e2a251a17fefee9b3
  • https://github.com/goauthentik/authentik/commit/1fcf9868133e5d05e266edbc1f6f3ee972baa3f9
  • https://github.com/goauthentik/authentik/commit/c10ae83ebf8c61de2f1922edf1fab504d9f3b06f
  • https://github.com/goauthentik/authentik/commit/ec41732339726fba477182c0906a8d930b145beb
  • https://github.com/goauthentik/authentik/pull/25958
  • https://github.com/goauthentik/authentik/pull/25963
  • https://github.com/goauthentik/authentik/pull/25968
  • https://github.com/goauthentik/authentik/pull/25973
  • https://github.com/goauthentik/authentik/releases/tag/version/2026.2.7
  • https://github.com/goauthentik/authentik/releases/tag/version/2026.5.7
  • https://github.com/goauthentik/authentik/releases/tag/version/2026.8.2
  • https://github.com/goauthentik/authentik/security/advisories/GHSA-qgqp-xh8r-v73r

Generated by PoC Generator on 2026-09-27T12:16:38.126069786

Frequently asked questions

What is CVE-2026-94606?

CVE-2026-94606 is a High (8.9) vulnerability: authentik is an open-source identity provider.. This entry ships a detection-only PoC and a Docker test lab.

How do I detect CVE-2026-94606?

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-2026-94606?

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.