Insufficient Verification of Data Authenticity 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.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-JAVA-ORGASYNCHTTPCLIENT-20571234
- published8 Oct 2026
- disclosed7 Oct 2026
- creditUnknown
Introduced: 7 Oct 2026
NewCVE-2026-107284 (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 Insufficient Verification of Data Authenticity in the WebSocket handshake process. An attacker can cause unauthorized frames to be decoded and delivered by sending a crafted response with an invalid or missing Sec-WebSocket-Accept value, allowing the connection to proceed further than intended.