{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "11.0.20"
              },
              {
                "fixed": "11.0.24"
              },
              {
                "introduced": "10.1.53"
              },
              {
                "fixed": "10.1.57"
              },
              {
                "introduced": "9.0.115"
              },
              {
                "fixed": "9.0.120"
              }
            ],
            "source": "DESCRIPTION"
          },
          "events": [
            {
              "introduced": "1c65de6f27a3bac481514e56e3637785b65a4f2c"
            },
            {
              "fixed": "4f33a9eca48c5cbf5963dd213b74866e629154ad"
            },
            {
              "introduced": "f3d5786aa1bd6c2a78d666afc89b2a4570f66593"
            },
            {
              "fixed": "5da21b1c24a6443bca5c10dc80a69a76042ca337"
            },
            {
              "introduced": "fd3e7b16a7ead52f696b827178333f9a00696d25"
            },
            {
              "fixed": "8fc613dd46061308028b75ed99571db00b9db4e0"
            }
          ],
          "repo": "https://github.com/apache/tomcat",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "apache",
    "cwe_ids": [
      "CWE-20"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65637.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "11.0.20"
          },
          {
            "last_affected": "11.0.24"
          },
          {
            "introduced": "10.1.53"
          },
          {
            "last_affected": "10.1.57"
          },
          {
            "introduced": "9.0.115"
          },
          {
            "last_affected": "9.0.120"
          }
        ],
        "source": "AFFECTED_FIELD"
      },
      {
        "extracted_events": [
          {
            "introduced": "11.0.20"
          },
          {
            "fixed": "11.0.24"
          },
          {
            "introduced": "10.1.53"
          },
          {
            "fixed": "10.1.57"
          },
          {
            "introduced": "9.0.115"
          },
          {
            "fixed": "9.0.120"
          }
        ],
        "source": "DESCRIPTION"
      }
    ]
  },
  "details": "Improper Input Validation vulnerability in Apache Tomcat due to incomplete fix for CVE-2026-32990.\n\n\n\nThis issue affects Apache Tomcat: from 11.0.20 through 11.0.24, from 10.1.53 through 10.1.57, from 9.0.115 through 9.0.120.\n\n\n\nUsers are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121, which fix the issue.",
  "id": "CVE-2026-65637",
  "modified": "2026-08-28T03:30:50.198551401Z",
  "published": "2026-08-25T21:49:13.127Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65637.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://lists.apache.org/thread/djog953z1ohsyt25bdvhfzbmsy22vgcj"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-65637"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Apache Tomcat: HTTP/2 no-authority bypass of strict SNI validation - CVE-2026-32990 fix incomplete"
}