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.
Affected products
appium: java-client
References5
- github.com/appium/java-client/security/advisories/GHSA-28f5-38x… ExploitVendor Advisory
- github.com/appium/java-client/security/advisories/GHSA-28f5-38x… ExploitVendor Advisory
- github.com/appium/java-client/commit/2b9cd442b9dbf56ccc6f1e83ae… Patch
- github.com/appium/java-client/pull/2408 Issue TrackingPatch
- github.com/appium/java-client/releases/tag/v10.1.1 Release Notes
Metrics
- CVSS 3.1
-
8.2
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N - EPSS — exploit probability
- 0% percentile: 38 · as of 13 November 2026
- CWE
- CWE-441CWE-918
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