CVE catalog
CVE-2026-34774
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 39.8.1, 40.7.0, and 41.0.0, apps that use offscreen rendering and allow child
- Severity
- High · CVSS 8.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.44% · Oct 25, 2026
A flaw was found in Electron. This use-after-free vulnerability occurs in applications that utilize offscreen rendering and permit child windows. When the parent offscreen WebContents is destroyed while a child window remains active, subsequent rendering attempts on the child can access freed memory. This can lead to a crash or memory corruption within the application. Electron: Electron: Memory corruption and crash due to use-after-free in offscreen rendering The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | electron | Not reported | 39.8.1 | fixed |
| Cpe | electron | Not reported | 40.7.0 | fixed |
| Cpe | electron | Not reported | Not reported | unknown |
| Npm | electron | Not reported | 39.8.1 | fixed |
| Npm | electron | Not reported | 40.7.0 | fixed |
| Npm | electron | Not reported | 41.0.0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | electron | cpe | Not reported | 39.8.1 | Not reported | Not reported | Not reported |
| Cpe | electron | cpe | Not reported | 40.7.0 | Not reported | Not reported | Not reported |
| Npm | electron | npm | Not reported | 39.8.1 | Not reported | Not reported | Not reported |
| Npm | electron | npm | Not reported | 40.7.0 | Not reported | Not reported | Not reported |
| Npm | electron | npm | Not reported | 41.0.0 | Not reported | Not reported | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-34774]
- [https://osv.dev/vulnerability/GHSA-532v-xpq5-8h95]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34774.json]
[FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]