Detections
Analytics

SCA: security update for electron (GHSA-xj5x-m3f3-5x3h)

medium Tenable Cloud Security Plugin ID 439770

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, a service worker running in a session could spoof
 reply messages on the internal IPC channel used by webContents.executeJavaScript() and related methods,
 causing the main-process promise to resolve with attacker-controlled data. Apps are only affected if they
 have service workers registered and use the result of webContents.executeJavaScript() (or
 webFrameMain.executeJavaScript()) in security-sensitive decisions. This issue has been patched in versions
 38.8.6, 39.8.1, 40.8.1, and 41.0.0. (CVE-2026-34778)

Solution

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

See Also

https://github.com/advisories/GHSA-xj5x-m3f3-5x3h

Plugin Details

Severity: Medium

ID: 439770

Version: Revision 1.7

Type: Local

Family: SCA Checks

Published: 4/3/2026

Updated: 6/8/2026

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: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-34778

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/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-2026-34778