Apache Tomcat: HTTP/2 no-authority bypass of strict SNI validation - CVE-2026-32990 fix incomplete

{
  "id": "bc8e3fd7fd61e58f381bd03e83b5346260aeafcd75e973ad94acb089ee004f4b",
  "url": "https://osv.dev/vulnerability/BIT-tomcat-2026-65637",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Apache Tomcat: HTTP/2 no-authority bypass of strict SNI validation - CVE-2026-32990 fix incomplete",
    "summary": "Improper Input Validation vulnerability in Apache Tomcat due to incomplete fix for CVE-2026-32990. This 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. Users are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121, which fix the issue.",
    "evidence": "osv:BIT-tomcat-2026-65637",
    "products": [
      {
        "name": {
          "value": "tomcat",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "9.0.121",
            "evidence": "/affected/0/ranges"
          },
          {
            "value": "10.1.58",
            "evidence": "/affected/0/ranges"
          },
          {
            "value": "11.0.25",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "critical",
    "structured": {
      "id": "BIT-tomcat-2026-65637",
      "aliases": [
        "BIT-tomcat-2026-65637",
        "CVE-2026-65637",
        "GHSA-f525-44xv-f2qj"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "SEMVER",
              "events": [
                {
                  "introduced": "9.0.115"
                },
                {
                  "fixed": "9.0.121"
                },
                {
                  "introduced": "10.1.53"
                },
                {
                  "fixed": "10.1.58"
                },
                {
                  "introduced": "11.0.20"
                },
                {
                  "fixed": "11.0.25"
                }
              ]
            }
          ],
          "package": {
            "name": "tomcat",
            "purl": "pkg:bitnami/tomcat",
            "ecosystem": "Bitnami"
          },
          "severity": [
            {
              "type": "CVSS_V3",
              "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
            }
          ],
          "database_specific": {
            "source": "https://github.com/bitnami/vulndb/tree/main/data/tomcat/BIT-tomcat-2026-65637.json"
          }
        }
      ],
      "modified": "2026-10-27T15:10:58.130507578Z",
      "provider": "osv",
      "references": [
        "https://lists.apache.org/thread/djog953z1ohsyt25bdvhfzbmsy22vgcj",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-65637"
      ],
      "provider_metadata": {
        "cpes": [
          "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
          "cpe:2.3:a:apache:tomcat:*:*:*:*:*:maven:*:*"
        ],
        "severity": "Critical"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-65637",
        "evidence": "/aliases"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/database_specific/severity"
  },
  "source_id": "core-osv",
  "document_id": 462804,
  "published_at": "2026-08-28T14:58:51.237+00:00"
}