critical9.9
CVE-2026-52891
Wekan is open source kanban built with Meteor.
Impact
Wekan is open source kanban built with Meteor. Prior to 9.07, Wekan avatar upload functionality embeds user-supplied filenames into paths later passed to child_process.exec() for MIME-type detection. Because models/avatars.js and models/fileValidation.js used a shell command with the avatar filename, shell metacharacters such as backticks and $() in the filename could execute commands on the server. This issue is fixed in version 9.07.
Affected products
| Product | Affected versions |
|---|---|
| Wekan Is Open Source Kanban Built With Meteor. | before 9.07 |
Versions were read from the advisory text. No structured product data has been published for this record yet.