CVE-2026-107232

{
  "etk_id": "ETK-2026-954",
  "cve_id": "CVE-2026-107232",
  "display_id": "CVE-2026-107232",
  "ghsa_id": "GHSA-v9f2-7rw2-gr2x",
  "euvd_id": "EUVD-2026-94637",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Improper proxy tunnel validation in async-http-client",
  "summary": "AsyncHttpClient versions through 3.0.11 and 2.16.0 can reuse a plaintext proxy connection after a proxy rejects a tunnel request. An untrusted proxy, or an attacker able to answer on the client-to-proxy path, may obtain origin credentials when the application sends credentialed requests through that proxy.",
  "mitigation": "Upgrade async-http-client to 3.0.12 or later on the 3.x line, or to 2.16.1 or later on the 2.x line. Until upgraded, do not route credentialed requests through untrusted HTTP proxies.",
  "vendor": "maven",
  "product": "maven:org.asynchttpclient:async-http-client",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 3.0.0, <= 3.0.11"
      ],
      "ecosystem": "maven",
      "fixed_versions": [
        "3.0.12"
      ],
      "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": [
    319
  ],
  "cvss_score": 7.5,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
  "epss_score": 0.0021,
  "epss_percentile": 0.1095,
  "epss_asof": "2026-10-21",
  "automation": "deterministic",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 19.173411966666666,
  "t0_at": "2026-10-07T21:09:03.284000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-07T21:09:03.284000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-07T21:09:03.284000+00:00",
      "url": "https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-v9f2-7rw2-gr2x"
    }
  }
}