{"id":"CVE-2026-119300","published":"2026-10-30T17:17:18.413","lastModified":"2026-10-30T17:17:18.563","description":"Wekan is open source kanban built with Meteor. Prior to 11.11, the user-search publication in server/publications/users.js and the searchUsers method in server/models/users.js pass authenticated user-controlled searchTerm and query values to new RegExp() without escaping regular-expression metacharacters. MongoDB-backed deployments evaluate the resulting patterns with PCRE2, allowing a logged-in user to submit catastrophic-backtracking expressions that consume database CPU and degrade or deny service to other users; searchUsers additionally requires board membership or site-admin status. The FerretDB v1 / RE2 unaffected configuration is not practically affected by catastrophic backtracking. This issue is fixed in version 11.11.","cvssScore":6.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwes":["CWE-1333"],"vendors":[],"products":[],"references":[{"url":"https://github.com/wekan/wekan/commit/4ce5cf6e102854d326e1dcacde6cd20614525dec","tags":[]},{"url":"https://github.com/wekan/wekan/releases/tag/v11.11","tags":[]},{"url":"https://github.com/wekan/wekan/security/advisories/GHSA-9846-cj96-6hv5","tags":[]}],"exploitRefs":[{"url":"https://github.com/wekan/wekan/commit/4ce5cf6e102854d326e1dcacde6cd20614525dec","tags":[]},{"url":"https://github.com/wekan/wekan/releases/tag/v11.11","tags":[]},{"url":"https://github.com/wekan/wekan/security/advisories/GHSA-9846-cj96-6hv5","tags":[]}],"hasPoc":true,"ai":null}