CVE-2026-102673

EUVD-2026-89078
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 41.10.4, 42.5.2, and 43.0.0, popups opened from a sandboxed iframe through Electron's OpenURLFromTab navigation path, including links using target="_blank" or a middle-click, did not receive the inherited HTML sandbox restrictions. An untrusted iframe using the allow-scripts allow-popups configuration could therefore open a popup with the embedding application's full origin, exposing that origin's cookies, storage, and same-origin scripting capabilities. Applications that do not embed untrusted content in sandboxed iframes are not affected. This issue is fixed in versions 41.10.4, 42.5.2, and 43.0.0.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.2 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 2.84%
Affected Products (NVD)
VendorProductVersion
electronjselectron
𝑥
< 39.8.8
electronjselectron
40.0.0 ≤
𝑥
< 40.9.0
electronjselectron
41.0.0 ≤
𝑥
≤ 41.2.1
electronjselectron
42.0.0:alpha1
electronjselectron
42.0.0:alpha2
electronjselectron
42.0.0:alpha3
electronjselectron
42.0.0:alpha4
electronjselectron
42.0.0:alpha5
electronjselectron
42.0.0:alpha6
electronjselectron
42.0.0:beta1
electronjselectron
42.0.0:beta2
𝑥
= Vulnerable software versions