CVE-2026-107279: CWE-303: Incorrect Implementation of Authentication Algorithm in AsyncHttpClient async-http-client
Description
The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. In 3.0.12, a peer offering only Digest qop=auth-int causes mutual-authentication verification to be skipped. AuthenticatorUtils.computeExpectedRspAuth returns no expected value for auth-int, and Interceptors treats that result as unverifiable but nonfatal, so a response with an invalid rspauth value is accepted. A peer that does not know the shared secret can therefore be accepted as the authenticated server. This issue is fixed in version 3.0.13.
CVSS v4.0
Score 8.8high
Affected software
AsyncHttpClient
async-http-client
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-10-07T15:53:23.585Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ac6bac72cdf04f65680ca5f
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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