---
id: "CVE-2026-114122"
kind: "vulnerability"
aliases: ["CVE-2026-114122", "GHSA-3qxv-5xgr-q7w9"]
title: "Electron: Frame subscription trusts GPU-supplied frame geometry"
severity: "low"
cvss: 3.9000000953674316
epss: 0.0014100000262260437
exploited: false
status: "open"
category: "runtime"
products: [{"name": "electron", "fixed": ["42.11.6"], "affected": "< 42.11.6", "ecosystem": "npm"}, {"name": "electron", "fixed": ["43.7.3"], "affected": ">= 43.0.0-alpha.1, < 43.7.3", "ecosystem": "npm"}, {"name": "electron", "fixed": ["44.4.3"], "affected": ">= 44.0.0-alpha.1, < 44.4.3", "ecosystem": "npm"}, {"name": "electron", "fixed": ["45.0.0-alpha.9"], "affected": ">= 45.0.0-alpha.1, < 45.0.0-alpha.9", "ecosystem": "npm"}]
ecosystems: ["npm"]
tags: ["cwe-125", "desktop-apps", "electron", "runtime"]
not_affected_if: ["already-patched-version", "no-beginframesubscription-use"]
published_at: "2026-10-21T17:18:25+00:00"
first_seen_at: "2026-10-23T19:11:31+00:00"
updated_at: "2026-10-23T21:57:29+00:00"
sources: [{"source": "ghsa", "url": "https://github.com/advisories/GHSA-3qxv-5xgr-q7w9", "first_seen_at": "2026-10-23T19:11:31+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-114122", "first_seen_at": "2026-10-23T21:57:29+00:00"}]
---

# Electron: Frame subscription trusts GPU-supplied frame geometry

Electron's main process does not fully validate frame geometry received from the GPU process when an app uses webContents.beginFrameSubscription. A process that already has code execution in the GPU process can make the main process read out-of-bounds memory, leaking data or crashing the app.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- npm:electron affected < 42.11.6 fixed 42.11.6
- npm:electron affected >= 43.0.0-alpha.1, < 43.7.3 fixed 43.7.3
- npm:electron affected >= 44.0.0-alpha.1, < 44.4.3 fixed 44.4.3
- npm:electron affected >= 45.0.0-alpha.1, < 45.0.0-alpha.9 fixed 45.0.0-alpha.9

## How to check

Run: grep -rn "beginFrameSubscription" in your app source to see whether you use it.
Check your Electron version in package.json or node_modules/electron/package.json against the fixed versions.

## Fix

Upgrade Electron to 42.11.6, 43.7.3, 44.4.3, or 45.0.0-alpha.9, matching your release line. No app-side workaround exists.

## Timeline

- 2026-10-23T19:11:31+00:00 ghsa https://github.com/advisories/GHSA-3qxv-5xgr-q7w9
- 2026-10-23T21:57:29+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-114122

## From the sources

### Impact
Frame data received from the GPU process for `webContents.beginFrameSubscription` was not fully validated by the main process. A compromised GPU process could cause the main process to read out-of-bounds memory while producing the captured frame images, disclosing memory or crashing the app.

Apps are only affected if they use `webContents.beginFrameSubscription` and an attacker has separately gained code execution in the GPU process. Apps that do not subscribe to captured frames are not affected.

### Workarounds
There are no app side workarounds, you must update to a patched version of Electron.

### Fixed Versions
* `45.0.0-alpha.9`
* `44.4.3`
* `43.7.3`
* `42.11.6`

### For more information
If you have any questions or comments about this advisory, email us at [security@electronjs.org](mailto:security@electronjs.org)

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_