CVE-2026-43910 — Appium Java Client is the Java language binding for writing Appium tests that conform to…¶
Key facts
CVE-2026-43910 is a High (8.2) vulnerability: Appium Java Client is the Java language binding for writing Appium tests that conform to…. This entry ships a detection-only PoC and a Docker test lab.
| CVE | CVE-2026-43910 |
| Severity | High (8.2) |
| Detection / prevention | — |
| PoC | poc.py |
| Source | 2026/CVE-2026-43910/ |
Details¶
English | 한국어
Description¶
Appium Java Client is the Java language binding for writing Appium tests that conform to the W3C WebDriver protocol. From 8.2.1 until 10.1.1, when directConnect(true) is enabled, AppiumCommandExecutor.setDirectConnect() reads the directConnectHost, directConnectPort, and directConnectPath fields from the server's NEW_SESSION response and rebuilds the client's server URL from them, validating only that the protocol is https, with no host allowlist or IP validation; a rogue or compromised server can therefore redirect all subsequent session traffic to an arbitrary destination, enabling full interception of session traffic and a server-side request forgery pivot to internal hosts, including cloud metadata (IMDS) credential theft. This vulnerability is fixed in 10.1.1.
Vulnerability Details¶
| Property | Value |
|---|---|
| CVE ID | CVE-2026-43910 |
| Type | SSRF |
| CVSS Score | 8.2 |
Proof of Concept¶
Download¶
# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2026/CVE-2026-43910/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-2026-43910
# 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/appium/java-client/commit/2b9cd442b9dbf56ccc6f1e83aeeb411c0ec230c9
- https://github.com/appium/java-client/pull/2408
- https://github.com/appium/java-client/releases/tag/v10.1.1
- https://github.com/appium/java-client/security/advisories/GHSA-28f5-38xr-jh2w
- https://github.com/appium/java-client/security/advisories/GHSA-28f5-38xr-jh2w
Generated by PoC Generator on 2026-08-03T14:23:02.590619171
Frequently asked questions¶
What is CVE-2026-43910?¶
CVE-2026-43910 is a High (8.2) vulnerability: Appium Java Client is the Java language binding for writing Appium tests that conform to…. This entry ships a detection-only PoC and a Docker test lab.
How do I detect CVE-2026-43910?¶
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-2026-43910?¶
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.