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SCA: security update for electron (GHSA-mwmh-mq4g-g6gr)

high Tenable Cloud Security Plugin ID 439790

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.
 Prior to versions 38.8.6, 39.8.1, 40.8.1, and 41.0.0, on Windows, app.setAsDefaultProtocolClient(protocol)
 did not validate the protocol name before writing to the registry. Apps that pass untrusted input as the
 protocol name may allow an attacker to write to arbitrary subkeys under HKCU\Software\Classes\,
 potentially hijacking existing protocol handlers. Apps are only affected if they call
 app.setAsDefaultProtocolClient() with a protocol name derived from external or untrusted input. Apps that
 use a hardcoded protocol name are not affected. This issue has been patched in versions 38.8.6, 39.8.1,
 40.8.1, and 41.0.0. (CVE-2026-34773)

Solution

Update the electron library and its related packages to version 38.8.6 or later.

See Also

https://github.com/advisories/GHSA-mwmh-mq4g-g6gr

Plugin Details

Severity: High

ID: 439790

Version: Revision 1.10

Type: Local

Family: SCA Checks

Published: 4/3/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.73

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-34773

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 4/3/2026

Vulnerability Publication Date: 4/3/2026

Reference Information

CVE: CVE-2026-34773