CRITICAL 9.8 NVD
CVE-2026-111058
Mercury is a Python framework for sharing Jupyter notebooks as web applications and dashboards. Prior to 3.2.6, default tokenless deployments allow anonymous cl
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.
References
- https://github.com/mljar/mercury/commit/73a40ceb0becf057f495a5738ad7f5a5222a53e1
- https://github.com/mljar/mercury/releases/tag/3.2.6
- https://github.com/mljar/mercury/security/advisories/GHSA-rv4m-xm3f-3ccq
This critical severity vulnerability with a CVSS score of 9.8 was published on 2026-10-19 via NVD.
Risk Timeline
CVE Disclosed2026-10-19 · -1 days ago
Remediation Resources
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