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CVE-2026-111058

9.8 critical exploit SSVC exploitation: none Published
NVD · CVE.org

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.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Public exploits 1

Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.

Change history 3

  1. StatusAwaiting Analysis → PublishedNVD modified 2026-10-19 17:06
  2. StatusReceived → Awaiting AnalysisNVD modified 2026-10-19 21:13
  3. First seenCVSS 9.8NVD modified 2026-10-19 17:17

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 3