Appium java-client up to 10.1.0 AppiumCommandExecutor.setDirectConnect server-side request forgery

Summaryinfo

A vulnerability marked as critical has been reported in Appium java-client up to 10.1.0. This affects the function AppiumCommandExecutor.setDirectConnect. Performing a manipulation of the argument directConnectHost/directConnectPort/directConnectPath results in server-side request forgery. This vulnerability is cataloged as CVE-2026-43910. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Appium java-client up to 10.1.0. It has been classified as critical. This affects the function AppiumCommandExecutor.setDirectConnect. The manipulation of the argument directConnectHost/directConnectPort/directConnectPath with an unknown input leads to a server-side request forgery vulnerability. CWE is classifying the issue as CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-43910 since 05/04/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 10.1.1 eliminates this vulnerability.

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Productinfo

Type

• Programming Language Software

Vendor

• Appium

Name

• java-client

Version

• 10.0
• 10.1.0

Website

• Product: https://github.com/appium/java-client/

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