Wekan is open source kanban built with Meteor. Prior to 9.31, Wekan allows a logged-in board member to insert an attachment document through the /attachments/insert DDP method with attacker-controlled versions.original.path and versions.original.storage fields. The server/permissions/attachments.js insert rule checks only board write access, and FileStoreStrategyFilesystem.getReadStream() in models/lib/fileStoreStrategy.js streams the stored path without a storage-root containment check, allowing arbitrary file reads and denial of service through special files such as /dev/zero. This issue is fixed in version 9.31.
Advisories
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Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Thu, 16 Jul 2026 13:30:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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Wed, 15 Jul 2026 23:30:00 +0000
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| First Time appeared |
Wekan
Wekan wekan |
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| Vendors & Products |
Wekan
Wekan wekan |
Wed, 15 Jul 2026 21:30:00 +0000
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| Description | Wekan is open source kanban built with Meteor. Prior to 9.31, Wekan allows a logged-in board member to insert an attachment document through the /attachments/insert DDP method with attacker-controlled versions.original.path and versions.original.storage fields. The server/permissions/attachments.js insert rule checks only board write access, and FileStoreStrategyFilesystem.getReadStream() in models/lib/fileStoreStrategy.js streams the stored path without a storage-root containment check, allowing arbitrary file reads and denial of service through special files such as /dev/zero. This issue is fixed in version 9.31. | |
| Title | Wekan: Arbitrary file read and server DoS via attachment versions.original.path | |
| Weaknesses | CWE-22 CWE-400 |
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| References |
| |
| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-07-16T12:59:24.289Z
Reserved: 2026-06-08T21:44:27.365Z
Link: CVE-2026-52890
Updated: 2026-07-16T12:59:19.765Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-07-15T23:15:15Z