CVE-2026-43910

HIGH 8.2

Appium java-client Allows Network Pivot via Unvalidated directConnect Redirect in AppiumCommandExecutor

CVSS Score

8.2

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-441 CWE-918
Vendor	appium
Product	java-client
Published	Jul 28, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

Low

Availability

None

Affected Versions

appium / java-client

>= 8.2.1, < 10.1.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/appium/java-client/security/advisories/GHSA-28f5-38xr-jh2w github.com: https://github.com/appium/java-client/pull/2408 github.com: https://github.com/appium/java-client/commit/2b9cd442b9dbf56ccc6f1e83aeeb411c0ec230c9 github.com: https://github.com/appium/java-client/releases/tag/v10.1.1