CVE-2026-13350
Deferred
Deferred - Pending Action
Incorrect Room Type Assignment in Matrix Synapse
Publication date: 2026-06-25
Last updated on: 2026-06-25
Assigner: rami.io
Description
Description
Permissions where checked incorrectly during room creation, allowing attackers to create rooms of types they shouldn't be allowed to create.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| venueless | venueless | to 040ae040 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-639 | The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. |