CVE-2026-111058

9.8 CRITICALpublic exploit available

Published 2026-10-19 · Updated 2026-10-19

AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.

NVD 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 vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-862

Public exploit & PoC 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

All 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

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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