{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-11941",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-11941",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-06-19T09:55:54.501Z",
    "updatedAt": "2026-06-22T15:10:00.033Z",
    "importedAt": "2026-10-24T01:57:55.771Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "Use-after-free in connection ID iterator and FFI functions",
      "summary": "Cloudflare Quiche was affected by 2 use-after-free vulnerabilities in the connection ID iterator FFI functions.\n\n\n\nThe “quiche_connection_id_iter_next” and “quiche_conn_retired_scid_next” functions would return a pointer to a “ConnectionId” to the applications via function arguments, but the owned “ConnectionId” would be dropped at the end of those functions' scope.\n\n\n\nOnly applications using those FFI functions are affected. The FFI API is disabled by default by a build-time feature flag.\n\n\n\nImpact\nIf unpatched, an application calling the affected FFI functions will dereference freed memory. The most likely outcome is undefined behavior leading to a process crash (denial of service). Depending on allocator state, the read may also return adjacent heap contents, resulting in limited information disclosure or incorrect connection identifier handling.\n\n\n\nMitigation\nUsers are requested to upgrade to quiche 0.29.2 which is the earliest version containing the fix for this issue.",
      "affected": [
        {
          "vendor": "Cloudflare",
          "product": "Quiche",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0.20.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "0.29.1"
            }
          ]
        }
      ]
    }
  }
}