{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "2.1.0"
              },
              {
                "last_affected": "2.16.1"
              },
              {
                "introduced": "3.0.0"
              },
              {
                "fixed": "3.0.14"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "927333da38413759027ccc22a93621da21e7468a"
            },
            {
              "introduced": "9a771c7b40e716ca77a3cad691545b29ff64bfd3"
            },
            {
              "fixed": "6ec7ee45034d154f502852a962d2891746fb82c1"
            },
            {
              "fixed": "bec30bb3d27ad13f069f72b37351c61bff3394ff"
            }
          ],
          "repo": "https://github.com/asynchttpclient/async-http-client",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-p2jm-6hj6-9rjg"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-384",
      "CWE-693"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107226.json"
  },
  "details": "The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. From 2.1.0 until 3.0.14, the default ThreadSafeCookieStore does not retain whether a Set-Cookie response used a secure transport. It accepts Secure cookies received over plaintext and permits insecure cookies to overlay or delete existing Secure cookies with matching scope. An attacker controlling a plaintext same-site response can consequently plant, replace, or remove cookie state later sent to an HTTPS origin, enabling session fixation, CSRF-token replacement, or loss of security-relevant state. This issue is fixed in version 3.0.14.",
  "id": "CVE-2026-107226",
  "modified": "2026-10-15T02:30:21.647038721Z",
  "published": "2026-10-12T18:34:18.996Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.14"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-p2jm-6hj6-9rjg"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107226.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-107226"
    },
    {
      "type": "FIX",
      "url": "https://github.com/AsyncHttpClient/async-http-client/commit/6ec7ee45034d154f502852a962d2891746fb82c1"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "AsyncHttpClient: Cookies received over plaintext HTTP can plant, overwrite or delete Secure cookies set over HTTPS"
}