CVE-2026-107231: CWE-319: Cleartext Transmission of Sensitive Information in AsyncHttpClient async-http-client
Description
The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. Prior to 3.0.13 and 2.16.1, Realm.Builder treats a Digest challenge that yields no usable nonce as a Basic challenge. A malicious origin or proxy can label a challenge Digest while omitting or emptying the nonce, causing the client to resend the username and password using reversible Basic authentication. Both origin and proxy challenge parsers are affected. This issue is fixed in versions 3.0.13 and 2.16.1.
CVSS v4.0
Score 8.7high
Affected software
AsyncHttpClient
async-http-client
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-10-07T14:34:14.817Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ac6bac72cdf04f65680ca5d
Added to database: 10/07/2026, 21:33:59 UTC
Last updated: 10/07/2026, 21:33:59 UTC
Views: 1
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