{"id":"CVE-2026-65637","summary":"Apache Tomcat: HTTP/2 no-authority bypass of strict SNI validation - CVE-2026-32990 fix incomplete","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.","aliases":["BIT-tomcat-2026-65637","GHSA-f525-44xv-f2qj"],"modified":"2026-11-02T23:12:04.399628806Z","published":"2026-08-25T21:49:13.127Z","related":["ALSA-2026:92869","ALSA-2026:93469","SUSE-SU-2026:23690-1","SUSE-SU-2026:23691-1","SUSE-SU-2026:23700-1","SUSE-SU-2026:23710-1","SUSE-SU-2026:23711-1","SUSE-SU-2026:23720-1","SUSE-SU-2026:4114-1","SUSE-SU-2026:4119-1","SUSE-SU-2026:4126-1","SUSE-SU-2026:4203-1","openSUSE-SU-2026:11759-1","openSUSE-SU-2026:11760-1","openSUSE-SU-2026:11761-1","openSUSE-SU-2026:21810-1","openSUSE-SU-2026:21811-1","openSUSE-SU-2026:21823-1"],"database_specific":{"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":[{"strategy":"StandardRange","range":[{"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"}]}],"cna_assigner":"apache"},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/apache/tomcat","events":[{"introduced":"fd3e7b16a7ead52f696b827178333f9a00696d25"},{"fixed":"dc00a53100b38c8eb8befce5855e3b152eed9353"},{"introduced":"f3d5786aa1bd6c2a78d666afc89b2a4570f66593"},{"fixed":"96f28aed7efb331abb67b55319072e9de3240e6f"},{"introduced":"1c65de6f27a3bac481514e56e3637785b65a4f2c"},{"fixed":"cbe6e15ee81e2fc6232954292a80cca5d1e84009"}],"database_specific":{"extracted_events":[{"source":"CPE_RANGE","cpe":"cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*","range":[{"introduced":"9.0.115"},{"fixed":"9.0.121"}]},{"cpe":"cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*","range":[{"introduced":"10.1.53"},{"fixed":"10.1.58"}],"source":"CPE_RANGE"},{"source":"CPE_RANGE","cpe":"cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*","range":[{"introduced":"11.0.20"},{"fixed":"11.0.25"}]}]}}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-65637.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}