{"id":"CVE-2026-41284","aliases":["BIT-tomcat-2026-41284","GHSA-gx5v-xp9w-j4cg"],"url":"https://o3.security/vulnerability/CVE-2026-41284","summary":"Apache Tomcat: Unbounded read in WebDAV LOCK and PROPFIND handling","details":"Versions Affected:\nApache Tomcat 11.0.0-M1 to 11.0.21\nApache Tomcat 10.1.0-M1 to 10.1.54\nApache Tomcat 9.0.0.M1 to 9.0.117\nOlder, unsupported versions may also be affected\n\nDescription:\nNo limit was enforced on the request body for WebDAV LOCK or PROPFIND\nrequests which were available to unauthenticated users.\n\nMitigation:\nUsers of the affected versions should apply one of the following\nmitigations:\n- Upgrade to Apache Tomcat 11.0.22 or later\n- Upgrade to Apache Tomcat 10.1.55 or later\n- Upgrade to Apache Tomcat 9.0.118 or later\n\nCredit:\nThis issue was identified by Dariusz Gońda","published":"2026-05-12T15:14:45.278Z","modified":"2026-09-11T08:25:36.520411734Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":{"score":0.00839,"percentile":0.56127,"asOf":"2026-09-17"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.apache.tomcat.embed:tomcat-embed-core","fixedVersion":"9.0.118"},{"ecosystem":"Maven","name":"org.apache.tomcat.embed:tomcat-embed-core","fixedVersion":"10.1.55"},{"ecosystem":"Maven","name":"org.apache.tomcat.embed:tomcat-embed-core","fixedVersion":"11.0.22"},{"ecosystem":"Maven","name":"org.apache.tomcat:tomcat","fixedVersion":"9.0.118"},{"ecosystem":"Maven","name":"org.apache.tomcat:tomcat","fixedVersion":"10.1.55"},{"ecosystem":"Maven","name":"org.apache.tomcat:tomcat","fixedVersion":"11.0.22"},{"ecosystem":"Maven","name":"org.apache.tomcat:tomcat-catalina","fixedVersion":"9.0.118"},{"ecosystem":"Maven","name":"org.apache.tomcat:tomcat-catalina","fixedVersion":"10.1.55"},{"ecosystem":"Maven","name":"org.apache.tomcat:tomcat-catalina","fixedVersion":"11.0.22"}],"fix":{"url":"https://github.com/apache/tomcat/commit/17dacd9aa48628da2eba37a9ab743c0b6c71685c","label":"apache/tomcat@17dacd9"},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/05/12/12"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41284.json"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/2nvqjr7ovjmvx2vbhb7s61ycd5msc8qc"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41284"},{"type":"WEB","url":"https://github.com/apache/tomcat/commit/17dacd9aa48628da2eba37a9ab743c0b6c71685c"},{"type":"WEB","url":"https://github.com/apache/tomcat/commit/a96fffd18487a29c0a30d36f00cb2b2d91f6d42c"},{"type":"WEB","url":"https://github.com/apache/tomcat/commit/b3d1c1c239142e806be0b7329d304b94a58913ed"},{"type":"PACKAGE","url":"https://github.com/apache/tomcat"},{"type":"WEB","url":"https://tomcat.apache.org/security-10.html"},{"type":"WEB","url":"https://tomcat.apache.org/security-11.html"},{"type":"WEB","url":"https://tomcat.apache.org/security-9.html"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-11T08:25:36.520411734Z"}}