MEDIUM 6.5 NVD
CVE-2026-119300
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/
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.
References
- https://github.com/wekan/wekan/commit/4ce5cf6e102854d326e1dcacde6cd20614525dec
- https://github.com/wekan/wekan/releases/tag/v11.11
- https://github.com/wekan/wekan/security/advisories/GHSA-9846-cj96-6hv5
This medium severity vulnerability with a CVSS score of 6.5 was published on 2026-10-30 via NVD.
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