{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "source": "REFERENCES"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "479eb5574195764e80e6cedebef669f6baa85083"
            }
          ],
          "repo": "https://github.com/facebook/proxygen",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {},
  "details": "In proxygen from v2026.04.06.00 until v2026.09.28.00, QuicWtSession::closeSession accesses its member fields after calling the base QuicWtSessionBase::closeSession method. The base method notifies the session handler, which may release the last reference to the session and destroy it.",
  "id": "CVE-2026-84895",
  "modified": "2026-10-03T03:30:56.905163736Z",
  "published": "2026-09-28T21:17:19.027Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.facebook.com/security/advisories/cve-2026-84895"
    },
    {
      "type": "FIX",
      "url": "https://github.com/facebook/proxygen/commit/479eb5574195764e80e6cedebef669f6baa85083"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}