CVE-2026-34771

HIGH EPSS 20.3%
Published Apr 4, 20262mo ago · Modified Jun 17, 20262w ago
8.8 CVSS 3.1
High
Find Similar
Published Apr 4, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago

Description

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8, apps that register an asynchronous session.setPermissionRequestHandler() may be vulnerable to a use-after-free when handling fullscreen, pointer-lock, or keyboard-lock permission requests. If the requesting frame navigates or the window closes while the permission handler is pending, invoking the stored callback dereferences freed memory, which may lead to a crash or memory corruption. Apps that do not set a permission request handler, or whose handler responds synchronously, are not affected. This issue has been patched in versions 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8.

CVSS Details

Base Score
8.8
Exploitability
2.8
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
20.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 16

VendorProductVersionRange
electronjselectron* <38.8.6
electronjselectron*≥39.0.0  –  <39.8.0
electronjselectron*≥40.0.0  –  <40.7.0
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-8337-3p73-46f4
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.