Disclosure summary
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.
Source-reported weakness categories
CWE-338
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2026-107283
Open original source · Updated Oct 08, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
GitHub Reviewed Security Advisories · GHSA-mfj3-87qq-382v
Open original source · Updated Oct 08, 2026
AsyncHttpClient: Digest authentication cnonce generated with a non-cryptographic random source
Source severity: LOW / 0
| Ecosystem | Package | Affected range | First patched |
|---|---|---|---|
| maven | org.asynchttpclient:async-http-client | >= 3.0.0, | 3.0.12 |
| maven | org.asynchttpclient:async-http-client | >= 2.0.0, | 2.16.1 |
Original records & references
PUBLISHED 2026-10-07T18:17:04-04:00
MODIFIED 2026-10-08T16:35:31-04:00
INGESTED 2026-10-10T20:55:02-04:00