Wekan up to 11.10 User Search users.js searchUsers searchTerm/query incorrect regex

Summaryinfo

A vulnerability was found in Wekan up to 11.10 and classified as problematic. Affected is the function searchUsers of the file server/publications/users.js of the component User Search. Such manipulation of the argument searchTerm/query leads to incorrect regex. This vulnerability is referenced as CVE-2026-119300. It is possible to launch the attack remotely. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Wekan up to 11.10. Affected by this issue is the function searchUsers of the file server/publications/users.js of the component User Search. The manipulation of the argument searchTerm/query with an unknown input leads to a incorrect regex vulnerability. Using CWE to declare the problem leads to CWE-185. The product specifies a regular expression in a way that causes data to be improperly matched or compared. Impacted is availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-119300 since 10/29/2026. The exploitation is known to be easy. The attack may be launched remotely. Technical details are known, but there is no available exploit.

Upgrading to version 11.11 eliminates this vulnerability.

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Productinfo

Name

• Wekan

Version

• 11.0
• 11.1
• 11.2
• 11.3
• 11.4
• 11.5
• 11.6
• 11.7
• 11.8
• 11.9
• 11.10

Website

• Product: https://github.com/wekan/wekan/

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