Cleartext Transmission of Sensitive Information Affecting org.asynchttpclient:async-http-client package, versions [2.0.0,2.16.1)[3.0.0.Beta1,3.0.13)
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-20571397
- published8 Oct 2026
- disclosed7 Oct 2026
- creditUnknown
Introduced: 7 Oct 2026
NewCVE-2026-107231 (opens in a new tab)How to fix?
Upgrade org.asynchttpclient:async-http-client to version 2.16.1, 3.0.13 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 in the Realm.Builder process when a Digest challenge is received without a usable nonce, causing a downgrade to Basic authentication and transmitting credentials in cleartext. An attacker can intercept sensitive information by manipulating the authentication challenge to omit or empty the nonce value.