CVE-2026-107283CWE-338

CVE-2026-107283

Low · published October 8, 2026

CVSS v3.1
3.7
EPSS
0%
Percentile
17.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
3.7 · LOW
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00263 · 17.1th percentile
Weakness
CWE-338 · Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Published
2026-10-08T02:17Z
References (5)
https://github.com/AsyncHttpClient/async-http-client/commit/dca2d90db87f0144ea893a6858dca13c426d06b6 · [email protected]https://github.com/AsyncHttpClient/async-http-client/commit/e1f5fc88fe211d3f64032c33b91093ba3d5e793d · [email protected]https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-2.16.1 · [email protected]https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.12 · [email protected]https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-mfj3-87qq-382v · [email protected]
EPSS history
Timeline
  • 09 OCT 03:26Z
    EPSS moved — → 0%
    epss
  • 07 OCT 21:24Z
    AsyncHttpClient: Digest authentication cnonce generated with a non-cryptographic random source
    cvelistv5
  • 07 OCT 21:24Z
    AsyncHttpClient: Digest authentication cnonce generated with a non-cryptographic random source
    cvelistv5