Detections
Analytics

SCA: security update for electron (GHSA-q6m5-f73j-m9mc)

critical Tenable Self-Hosted Container Security Plugin ID 443226

Description

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

 - Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS.
 From 42.3.1 until 42.3.3, Buffer performs incorrect byte length calculations resulting in heap buffer
 under/overflow. Most apps will crash and some may perform incorrect buffer allocations in the Node.js
 Buffer API resulting in unexpected truncation or allocation. This vulnerability is fixed in 42.3.3.
 (CVE-2026-54257)

Solution

Update the electron library and its related packages to version 42.3.3 or later.

See Also

https://github.com/advisories/GHSA-q6m5-f73j-m9mc

Plugin Details

Severity: Critical

ID: 443226

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 6/16/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.99

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2026-54257

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

CVSS v4

Risk Factor: Critical

Base Score: 9.3

Threat Score: 8.1

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/15/2026

Vulnerability Publication Date: 6/15/2026

Reference Information

CVE: CVE-2026-54257

cwe: CWE-120