Detections
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SCA: security update for mercury (GHSA-rv4m-xm3f-3ccq)

critical Tenable Cloud Security Plugin ID 476212

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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. (CVE-2026-111058)

Solution

Update the mercury library and its related packages to version 3.2.6 or later.

See Also

https://github.com/advisories/GHSA-rv4m-xm3f-3ccq

Plugin Details

Severity: Critical

ID: 476212

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 10/19/2026

Updated: 10/19/2026

Risk Information

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-111058

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/19/2026

Vulnerability Publication Date: 10/19/2026

Reference Information

CVE: CVE-2026-111058

cwe: CWE-862