CVE-2026-34777

MEDIUM EPSS 2.3%
Published Apr 4, 20262mo ago · Modified Jun 17, 20261w ago
5.4 CVSS 3.1
Medium
Find Similar
Published Apr 4, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

Description

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, when an iframe requests fullscreen, pointerLock, keyboardLock, openExternal, or media permissions, the origin passed to session.setPermissionRequestHandler() was the top-level page's origin rather than the requesting iframe's origin. Apps that grant permissions based on the origin parameter or webContents.getURL() may inadvertently grant permissions to embedded third-party content. The correct requesting URL remains available via details.requestingUrl. Apps that already check details.requestingUrl are not affected. This issue has been patched in versions 38.8.6, 39.8.1, 40.8.1, and 41.0.0.

CVSS Details

Base Score
5.4
Exploitability
2.8
Impact
2.5
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
2.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-346

Affected Products 17

VendorProductVersionRange
electronjselectron* <38.8.6
electronjselectron*≥39.0.0  –  <39.8.1
electronjselectron*≥40.0.0  –  <40.8.1
electronjselectron41.0.0any
electronjselectron41.0.0any
electronjselectron41.0.0any
electronjselectron41.0.0any
electronjselectron41.0.0any
electronjselectron41.0.0any
electronjselectron41.0.0any
electronjselectron41.0.0any
electronjselectron41.0.0any
electronjselectron41.0.0any
electronjselectron41.0.0any
electronjselectron41.0.0any
electronjselectron41.0.0any
electronjselectron41.0.0any

References 1

  • github.com https://github.com/electron/electron/security/advisories/GHSA-r5p7-gp4j-qhrx
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.