CVE-2026-107231

{
  "etk_id": "ETK-2026-1240",
  "cve_id": "CVE-2026-107231",
  "display_id": "CVE-2026-107231",
  "ghsa_id": "GHSA-rqf5-2wxv-rjf4",
  "euvd_id": "EUVD-2026-94636",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Digest-to-Basic authentication downgrade in AsyncHttpClient",
  "summary": "AsyncHttpClient versions before 3.0.13 and 2.16.1 can send credentials using Basic authentication after receiving a Digest challenge without a usable nonce. An attacker must be able to control an origin or proxy authentication challenge, or modify traffic on a plaintext HTTP connection, to expose credentials.",
  "mitigation": "Upgrade org.asynchttpclient:async-http-client to 3.0.13 or later on the 3.x line, or 2.16.1 or later on the 2.x line. Until upgraded, avoid Digest authentication with untrusted servers and over plaintext HTTP.",
  "vendor": "maven",
  "product": "maven:org.asynchttpclient:async-http-client",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 3.0.0.Beta1, <= 3.0.12"
      ],
      "ecosystem": "maven",
      "fixed_versions": [
        "3.0.13"
      ],
      "package_name": "org.asynchttpclient:async-http-client",
      "purl": "pkg:maven/org.asynchttpclient/async-http-client"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 2.0.0, <= 2.16.0"
      ],
      "ecosystem": "maven",
      "fixed_versions": [
        "2.16.1"
      ],
      "package_name": "org.asynchttpclient:async-http-client",
      "purl": "pkg:maven/org.asynchttpclient/async-http-client"
    }
  ],
  "cwes": null,
  "cvss_score": 8.7,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
  "epss_score": 0.0024,
  "epss_percentile": 0.1378,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 65.46346636666667,
  "t0_at": "2026-10-07T21:06:26.742000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-07T21:06:26.742000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-07T21:06:26.742000+00:00",
      "url": "https://github.com/advisories/GHSA-rqf5-2wxv-rjf4"
    }
  }
}