Review reviewHigh

CVE-2026-34771

electron electron, Red Hat Build of Podman Desktop, Red Hat Build of Podman Desktop - Tech Preview

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 h...

CVSS: 8.8
EPSS: 0.29%
CISA KEV: Not listed
Published: 2026.04.04

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.29%

Technical severityCVSS 8.8

Vulnerability overview

Affected product and versions

Product: electron electron, Red Hat Build of Podman Desktop, Red Hat Build of Podman Desktop - Tech Preview
Affected versions: >= < 38.8.6, >= >= 39.0.0-alpha.1, < 39.8.0, >= >= 40.0.0-alpha.1, < 40.7.0, >= >= 41.0.0-alpha.1, < 41.0.0-beta.8, < 38.8.6, >= 39.0.0 < 39.8.0, >= 40.0.0 < 40.7.0, 41.0.0
Fixed versions: 38.8.6, 39.8.0, 40.7.0

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that electron electron, Red Hat Build of Podman Desktop, Red Hat Build of Podman Desktop - Tech Preview and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE: CWE-364, CWE-416