CVE-2026-34772

Electron: Use-after-free in download save dialog callback

State: Published
Severity: 5.8 Medium
Published: Apr 3, 2026
Updated: Apr 6, 2026
Reserved: Mar 30, 2026

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 allow downloads and programmatically destroy sessions may be vulnerable to a use-after-free. If a session is torn down while a native save-file dialog is open for a download, dismissing the dialog dereferences freed memory, which may lead to a crash or memory corruption. Apps that do not destroy sessions at runtime, or that do not permit downloads, 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.

Scores

CVSS	Score	Vector	Source
3.1	5.8 Medium	CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:L	GitHub_M

Weaknesses

CWE-416 Use After Free

Affected Products

Product	Versions
electronelectron	< 38.8.6Affected >= 39.0.0-alpha.1, < 39.8.0Affected >= 40.0.0-alpha.1, < 40.7.0Affected >= 41.0.0-alpha.1, < 41.0.0-beta.8Affected

References

https://github.com/electron/electron/security/advisories/GHSA-9w97-2464-8783

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.