Vulnerability · Published Apr 3, 2026 · Assigned by GitHub_M

CVE-2026-34772Electron: Use-after-free in download save dialog callback

Medium 5.8

In plain English

A medium-severity use-after-free in electron from electron. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.8Medium

Exploit odds (30 days)0.2%top 88.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	electron	38.8.6	GHSA-9w97-2464-8783
npm	electron	39.8.0	GHSA-9w97-2464-8783
npm	electron	40.7.0	GHSA-9w97-2464-8783
npm	electron	41.0.0-beta.7	GHSA-9w97-2464-8783

Affected products (as reported)

Vendor	Product	Versions
electron	electron	< 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

Weakness: CWE-416 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:L

References

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