Detections
Analytics

SCA: security update for nbconvert (GHSA-pjvx-prjx-h659)

high Tenable Self-Hosted Container Security Plugin ID 476828

Description

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

 - The nbconvert tool, jupyter nbconvert, converts Jupyter notebooks to various other formats via Jinja
 templates. From 5.4.0 until 7.17.2, ExtractOutputPreprocessor in nbconvert/preprocessors/extractoutput.py
 joins the attacker-controlled cell output metadata filename to output_files_dir without limiting the
 result to the intended directory. When a victim converts a malicious notebook with the markdown, LaTeX,
 reStructuredText, or AsciiDoc exporter, path traversal in the output filename can write attacker-
 controlled output data to arbitrary locations accessible to the victim. Running the notebook cell again
 replaces the malicious output metadata, but merely converting the supplied notebook does not. This issue
 is fixed in version 7.17.2. (CVE-2026-114140)

Solution

Update the nbconvert library and its related packages to version 7.17.2 or later.

See Also

https://github.com/advisories/GHSA-pjvx-prjx-h659

Plugin Details

Severity: High

ID: 476828

Version: Revision 1.2

Type: Local

Family: SCA Checks

Published: 10/22/2026

Updated: 11/11/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.61

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5

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

CVSS Score Source: CVE-2026-114140

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 8.2

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

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

CVSS v4

Risk Factor: High

Base Score: 8.8

Threat Score: 7.3

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/22/2026

Vulnerability Publication Date: 10/21/2026

Reference Information

CVE: CVE-2026-114140

cwe: CWE-22