{"schema_version":"1.9.0","id":"CVE-2026-24733","published":"2026-02-17T18:50:43.871Z","modified":"2026-08-12T03:51:22.659391301Z","aliases":["BIT-tomcat-2026-24733","GHSA-qq5r-98hh-rxc9"],"related":["CGA-cx5v-2w43-7c54","SUSE-SU-2026:0877-1","SUSE-SU-2026:0890-1","SUSE-SU-2026:0922-1","SUSE-SU-2026:0932-1","SUSE-SU-2026:1058-1","SUSE-SU-2026:20926-1","SUSE-SU-2026:20982-1","openSUSE-SU-2026:10305-1","openSUSE-SU-2026:10306-1","openSUSE-SU-2026:10307-1","openSUSE-SU-2026:20350-1","openSUSE-SU-2026:20414-1","openSUSE-SU-2026:20444-1"],"summary":"Apache Tomcat: Security constraint bypass with HTTP/0.9","details":"Improper Input Validation vulnerability in Apache Tomcat.\n\n\nTomcat did not limit HTTP/0.9 requests to the GET method. If a security \nconstraint was configured to allow HEAD requests to a URI but deny GET \nrequests, the user could bypass that constraint on GET requests by \nsending a (specification invalid) HEAD request using HTTP/0.9.\n\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.14, from 10.1.0-M1 through 10.1.49, from 9.0.0.M1 through 9.0.112.\n\n\nOlder, EOL versions are also affected.\n\nUsers are recommended to upgrade to version 11.0.15 or later, 10.1.50 or later or 9.0.113 or later, which fixes the 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