{"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"],"modified":"2026-09-16T21:56:33.952543041Z","published":"2026-08-25T21:49:13.127Z","related":["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":{"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"}],"cna_assigner":"apache","cwe_ids":["CWE-20"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65637.json"},"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":"1c65de6f27a3bac481514e56e3637785b65a4f2c"},{"fixed":"4f33a9eca48c5cbf5963dd213b74866e629154ad"},{"introduced":"f3d5786aa1bd6c2a78d666afc89b2a4570f66593"},{"fixed":"5da21b1c24a6443bca5c10dc80a69a76042ca337"},{"introduced":"fd3e7b16a7ead52f696b827178333f9a00696d25"},{"fixed":"8fc613dd46061308028b75ed99571db00b9db4e0"}],"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"}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-65637.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}