CVE-2026-111058: CWE-862: Missing Authorization in mljar mercury
Description
Mercury is a Python framework for sharing Jupyter notebooks as web applications and dashboards. Prior to 3.2.6, default tokenless deployments allow anonymous clients to create Jupyter kernels and send execute_request messages containing arbitrary Python. The endpoint blocklist does not cover /api/kernels, and the websocket wrapper previously tracked idle activity without authorizing executable messages. This issue is fixed in version 3.2.6.
CVSS v3.1
Score 9.8critical
Affected software
mljar
mercury
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-10-15T12:47:13.664Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ad643052cdf04f6566afdde
Added to database: 10/19/2026, 16:19:17 UTC
Last updated: 10/19/2026, 16:19:17 UTC
Views: 1
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