CVE-2026-107283

low

Description

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.

References

https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-mfj3-87qq-382v

https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.12

https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-2.16.1

https://github.com/AsyncHttpClient/async-http-client/commit/e1f5fc88fe211d3f64032c33b91093ba3d5e793d

https://github.com/AsyncHttpClient/async-http-client/commit/dca2d90db87f0144ea893a6858dca13c426d06b6

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-94643

Details

Source: Mitre, NVD

Published: 2026-10-07

Updated: 2026-10-08

Risk Information

CVSS v2

Base Score: 2.6

Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:N/A:N

Severity: Low

CVSS v3

Base Score: 3.7

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Severity: Low

EPSS

EPSS: 0.00263