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.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 1
- First seenCVSS 6.5 · wekanNVD modified 2026-10-30 16:29
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 3
- https://github.com/wekan/wekan/security/advisories/GHSA-9846-cj96-6hv5 x_refsource_confirm
- https://github.com/wekan/wekan/commit/4ce5cf6e102854d326e1dcacde6cd20614525dec x_refsource_misc
- https://github.com/wekan/wekan/releases/tag/v11.11 x_refsource_misc