Cleartext Transmission of Sensitive Information Affecting org.asynchttpclient:async-http-client package, versions [2.0.0,2.16.1)[3.0.0,3.0.12)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JAVA-ORGASYNCHTTPCLIENT-20571690
- published8 Oct 2026
- disclosed7 Oct 2026
- creditUnknown
Introduced: 7 Oct 2026
NewCVE-2026-107285 (opens in a new tab)How to fix?
Upgrade org.asynchttpclient:async-http-client to version 2.16.1, 3.0.12 or higher.
Overview
org.asynchttpclient:async-http-client is a maven plugin for the Async Http Client (AHC) classes.
Affected versions of this package are vulnerable to Cleartext Transmission of Sensitive Information via the NettyRequestFactory.newNettyRequest process. An attacker can intercept proxy authentication credentials by initiating a proxied WebSocket request over a CONNECT tunnel, causing the proxy's Proxy-Authorization header to be sent to the origin server.
Workaround
Do not use proxy authentication together with ws:// requests through an HTTP proxy, or use wss:// instead.