CVE-2026-107283lowCWE-338

CVE-2026-107283: low-severity vulnerability in AsyncHttpClient async-http-client

AsyncHttpClient: Digest authentication cnonce generated with a non-cryptographic random source

Published

5Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 3.7
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. Prior to 3.0.12 and 2.16.1, Realm.Builder generates the HTTP Digest client nonce with ThreadLocalRandom rather than a cryptographically secure random source. Digest relies on an unpredictable cnonce to resist chosen-plaintext and credential precomputation attacks, so an observer able to infer generator state can reduce the protection of the authentication exchange. This issue is fixed in versions 3.0.12 and 2.16.1.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected products
AsyncHttpClient · async-http-client
Related CVEs — AsyncHttpClient async-http-client

In the same product, most dangerous first.

CVE-2024-53990CRITICALAsyncHttpClient (AHC) library's `CookieStore` replaces explicitly defined `Cookie`sEPSS 0.6%CVE-2026-85721HIGHAsyncHttpClient: Unbounded HTTP/1.1 response decompression enables a decompression-bomb denial of serviceEPSS 0.6%CVE-2026-85718MEDIUMAsyncHttpClient: Connection permit leak on TLS handshake failure causes per-host denial of serviceEPSS 0.5%CVE-2026-85717MEDIUMAsyncHttpClient: Client-wide realm credentials re-sent to a cross-origin redirect targetEPSS 0.5%CVE-2026-40490MEDIUMAsyncHttpClient leaks authorization credentials to untrusted domains on cross-origin redirectsEPSS 0.5%CVE-2026-45300HIGHasync-http-client: Cookie header not stripped on cross-origin redirectEPSS 0.5%
References
https://github.com/AsyncHttpClient/async-http-client/commit/dca2d90db87f0144ea893a6858dca13c426d06b6https://github.com/AsyncHttpClient/async-http-client/commit/e1f5fc88fe211d3f64032c33b91093ba3d5e793dhttps://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-2.16.1https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.12https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-mfj3-87qq-382v