CVE-2026-30847

Wekan is an open source kanban tool built with Meteor. In versions 8.31.0 through 8.33, the notificationUsers publication in Wekan publishes user documents with no field filtering, causing the ReactiveCache.getUsers() call to return all fields including highly sensitive data such as bcrypt password hashes, active session login tokens, email verification tokens, full email addresses, and any stored OAuth tokens. Unlike Meteor's default auto-publication which strips the services field for security, custom publications return whatever fields the cursor contains, meaning all subscribers receive the complete user documents. Any authenticated user who triggers this publication can harvest credentials and active session tokens for other users, enabling password cracking, session hijacking, and full account takeover. This issue has been fixed in version 8.34.

• CWE-200
• CWE-285

• https://github.com/wekan/wekan/commit/1c8667eae8b28739e43569b612ffdb2693c6b1cePatch
• https://github.com/wekan/wekan/releases/tag/v8.34Release Notes
• https://securitylab.github.com/advisories/GHSL-2026-035_Wekan/Third Party Advisory

Published

Mar 6, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

• Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-30841Wallos is an open-source, self-hostable personal subscriptio…6.1
• CVE-2026-30842Wallos is an open-source, self-hostable personal subscriptio…4.3
• CVE-2026-30843Wekan is an open source kanban tool built with Meteor. Versi…6.5
• CVE-2026-30844Wekan is an open source kanban tool built with Meteor. Versi…8.1
• CVE-2026-30845Wekan is an open source kanban tool built with Meteor. In ve…8.2
• CVE-2026-30846Wekan is an open source kanban tool built with Meteor. In ve…7.5
• CVE-2026-30848Parse Server is an open source backend that can be deployed …3.7
• CVE-2026-30849Mantis Bug Tracker (MantisBT) is an open source issue tracke…9.8
• CVE-2026-3085GStreamer rtpqdm2depay Heap-based Buffer Overflow Remote Cod…8.8
• CVE-2026-30850Parse Server is an open source backend that can be deployed …5.9
• CVE-2026-30851Caddy is an extensible server platform that uses TLS by defa…8.8
• CVE-2026-30852Caddy is an extensible server platform that uses TLS by defa…7.5