{"id":"CVE-2026-43515","summary":"Apache Tomcat: Security constraints not correctly applied","details":"Improper Authorization vulnerability when multiple method constraints define an HTTP method for the same extension in Apache Tomcat.\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109.\n\nUsers are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.","aliases":["BIT-tomcat-2026-43515","GHSA-5m62-pw8w-7w9f"],"modified":"2026-06-02T18:29:34.222878435Z","published":"2026-05-12T15:33:23.311Z","related":["CGA-8485-f6gj-w4gv","openSUSE-SU-2026:10925-1","openSUSE-SU-2026:10926-1","openSUSE-SU-2026:10927-1"],"database_specific":{"cna_assigner":"apache","unresolved_ranges":[{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"11.0.0-M1"},{"last_affected":"11.0.21"},{"introduced":"10.1.0-M1"},{"last_affected":"10.1.54"},{"introduced":"9.0.0.M1"},{"last_affected":"9.0.117"},{"introduced":"8.5.0"},{"last_affected":"8.5.100"},{"introduced":"7.0.0"},{"last_affected":"7.0.109"}]},{"source":"DESCRIPTION","extracted_events":[{"introduced":"11.0.0-M1"},{"fixed":"11.0.21"},{"introduced":"10.1.0-M1"},{"fixed":"10.1.54"},{"introduced":"9.0.0.M1"},{"fixed":"9.0.117"},{"introduced":"8.5.0"},{"fixed":"8.5.100"},{"introduced":"7.0.0"},{"fixed":"7.0.109"}]}],"cwe_ids":["CWE-285"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43515.json"},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/05/12/11"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43515.json"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/746nxfxod0wsocxtmv8pb8nkgmwpc6bb"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43515"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/apache/tomcat","events":[{"introduced":"e498667bd7811e846771a852b16ce9f1e524b81b"},{"last_affected":"2cdef2c0241cdf70b5edd88d3733a52e6b675047"},{"introduced":"e37b977db6f47e4380ad67114a49e8568951c953"},{"last_affected":"eddcf278ad919382608ada1898b2c5b63675c6d5"}],"database_specific":{"extracted_events":[{"introduced":"7.0.0"},{"last_affected":"7.0.109"},{"introduced":"8.5.0"},{"last_affected":"8.5.100"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*"}}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-43515.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"}]}