CVE-2026-54745 — Kubeflow Pipelines enables users to build and deploy portable, scalable machine learning…¶

Key facts

CVE-2026-54745 is a Critical (10.0) vulnerability: Kubeflow Pipelines enables users to build and deploy portable, scalable machine learning…. This entry ships a detection-only PoC and a Docker test lab.


CVE	CVE-2026-54745
Severity	Critical (10.0)
Detection / prevention	—
PoC	poc.py
Source	2026/CVE-2026-54745/

Details¶

English | 한국어

Description¶

Kubeflow Pipelines enables users to build and deploy portable, scalable machine learning workflows. Prior to 2.17.0, the Kubeflow Pipelines frontend exposes an unauthenticated server-side request forgery vulnerability through the /_proxy/ route in frontend/server/proxy-middleware.ts. The _routePathWithReferer() function accepts an arbitrary attacker-controlled HTTP or HTTPS target and passes its origin to createProxyMiddleware without a host allowlist or filtering for loopback, link-local, RFC1918, or cluster-local addresses. The route remains outside the authorization middleware when ENABLE_AUTHZ=true and is reachable through /apis/v1beta1/_proxy/, /apis/v2beta1/_proxy/, /pipeline/apis/v1beta1/_proxy/, and /pipeline/apis/v2beta1/_proxy/, including through a crafted Referer header. Requests can forward attacker-controlled methods, headers such as Authorization, Cookie, and X-Forwarded-For, and POST bodies to reachable internal services, while returning the upstream response to the unauthenticated client. This can expose cloud metadata credentials, Kubernetes or service APIs, and other cluster-internal endpoints to unauthorized read or modification. This issue is fixed in version 2.17.0.

Vulnerability Details¶

Property	Value
CVE ID	CVE-2026-54745
Type	SSRF
CVSS Score	10.0

Proof of Concept¶

Download¶

# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2026/CVE-2026-54745/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-2026-54745

# 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/kubeflow/pipelines/commit/a35f97aa4c17b25572369e5022546ab4421bdbdd
https://github.com/kubeflow/pipelines/pull/13511
https://github.com/kubeflow/pipelines/releases/tag/2.17.0
https://github.com/kubeflow/pipelines/security/advisories/GHSA-gqww-5pj5-8fq7

Generated by PoC Generator on 2026-08-30T00:51:18.341502329

Frequently asked questions¶

What is CVE-2026-54745?¶

CVE-2026-54745 is a Critical (10.0) vulnerability: Kubeflow Pipelines enables users to build and deploy portable, scalable machine learning…. This entry ships a detection-only PoC and a Docker test lab.

How do I detect CVE-2026-54745?¶

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-2026-54745?¶

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.