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JetBrains PyCharm < 2026.3 Safe Mode Code Execution

medium Nessus Plugin ID 379463

Synopsis

The Python IDE installed on the remote host is affected by a code execution vulnerability.

Description

According to its self-reported version, the JetBrains PyCharm installation on the remote host is prior to 2026.3. It is, therefore, affected by a code execution vulnerability.

In JetBrains PyCharm before 2026.3 code execution was possible in Safe Mode via a crafted Jupyter notebook widget module.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade JetBrains PyCharm to version 2026.3 or later.

See Also

https://www.jetbrains.com/privacy-security/issues-fixed/

Plugin Details

Severity: Medium

ID: 379463

File Name: pycharm_CVE-2026-123854.nasl

Version: 1.1

Type: Local

Agent: windows, macosx, unix

Family: Misc.

Published: 11/12/2026

Updated: 11/12/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.83

CVSS v2

Risk Factor: Medium

Base Score: 4.9

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

CVSS Score Source: CVE-2026-123854

CVSS v3

Risk Factor: Medium

Base Score: 5.5

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

Vulnerability Information

CPE: cpe:/a:jetbrains:pycharm

Required KB Items: Host/local_checks_enabled, installed_sw/PyCharm

Patch Publication Date: 11/6/2026

Vulnerability Publication Date: 11/6/2026

Reference Information

CVE: CVE-2026-123854