CVE-2026-107279: high-severity vulnerability in AsyncHttpClient async-http-client
AsyncHttpClient: Digest mutual authentication is switched off by a peer offering qop=auth-int
Published
18Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.8
exploitation probability
—
observed exploitation
nono source reports it
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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
Affected products
AsyncHttpClient · async-http-clientRelated CVEs — AsyncHttpClient async-http-client
In the same product, most dangerous first.
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References
https://github.com/AsyncHttpClient/async-http-client/commit/a5422493b638226666a1ecb5f82826c7c7845b99https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.13https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-qhv6-3pmh-95q4