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VULNERABILITIES

CVE-2026-111058 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/mljar/mercury/commit/73a40ceb0becf057f495a5738ad7f5a5222a53e1 [email protected]
https://github.com/mljar/mercury/releases/tag/3.2.6 [email protected]
https://github.com/mljar/mercury/security/advisories/GHSA-rv4m-xm3f-3ccq [email protected]

Weakness Enumeration

CWE-IDCWE NameSource
CWE-862Missing Authorization[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-111058
NVD Published Date:
Oct 19, 2026
NVD Last Modified:
Oct 19, 2026
Source:
[email protected]
CVE-2026-111058 Details - Not Deferred