CVEvulnerability

CVE-2026-102673

6.1 MEDIUM Published 2026-09-29 Modified 2026-10-15 Official page ↗
Status
Analyzed
Published
2026-09-29
Last modified
2026-10-15
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.2 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
CVSS 3.1 ([email protected])
6.1 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weaknesses
CWE-346, CWE-693

Description

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.

Affected configurations

• electronjs electron (< 39.8.8) • electronjs electron (>= 40.0.0 < 40.9.0) • electronjs electron (>= 41.0.0 <= 41.2.1) • electronjs electron 42.0.0

Related

Weakness · CWE (2)

  • CWE-346 Origin Validation Error weakness
  • CWE-693 Protection Mechanism Failure weakness

References