---
title: "CVE-2026-102677: Electron - Privilege Escalation"
description: "Electron 42.3.3 to 42.10.0, 43.5.0, and 44.0.0-beta.6 contains a privilege escalation caused by improper verification of cached sandboxed preload code, letting compromised renderers execute code in privileged preload context, exploit requires loading untrusted content."
url: https://panop.io/threat-heartbeat/CVE-2026-102677/
---

# CVE-2026-102677 Electron - Privilege Escalation

Electron 42.3.3 to 42.10.0, 43.5.0, and 44.0.0-beta.6 contains a privilege escalation caused by improper verification of cached sandboxed preload code, letting compromised renderers execute code in privileged preload context, exploit requires loading untrusted content.

CVSS base score 7.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.10% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-102677)

## Details

Type

Privilege Escalation

Impact

Privilege Escalation

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Published

29 September 2026

Updated

15 October 2026

Weakness

[CWE-20](https://cwe.mitre.org/data/definitions/20.html)

## Vendor fix

Update to versions 42.10.0, 43.5.0, 44.0.0-beta.6 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-102677](https://nvd.nist.gov/vuln/detail/CVE-2026-102677)
- [https://github.com/electron/electron/commit/c38d6fd68756f04647ea857bdb6a2abec332e217](https://github.com/electron/electron/commit/c38d6fd68756f04647ea857bdb6a2abec332e217)
- [https://github.com/electron/electron/pull/52480](https://github.com/electron/electron/pull/52480)
- [https://github.com/electron/electron/releases/tag/v42.10.0](https://github.com/electron/electron/releases/tag/v42.10.0)
- [https://github.com/electron/electron/releases/tag/v43.5.0](https://github.com/electron/electron/releases/tag/v43.5.0)
- [https://github.com/electron/electron/releases/tag/v44.0.0-beta.6](https://github.com/electron/electron/releases/tag/v44.0.0-beta.6)
- [https://github.com/electron/electron/security/advisories/GHSA-qmv3-fv6v-rmhq](https://github.com/electron/electron/security/advisories/GHSA-qmv3-fv6v-rmhq)
- [https://github.com/electron/electron/commit/000453e399bd1dee5e86376cdd9ece5fc071e601](https://github.com/electron/electron/commit/000453e399bd1dee5e86376cdd9ece5fc071e601)
- [https://github.com/electron/electron/commit/25ba8be57c65a83d8c14ebb8aa37693df17a04f3](https://github.com/electron/electron/commit/25ba8be57c65a83d8c14ebb8aa37693df17a04f3)

[← All CVEs](https://panop.io/threat-heartbeat/)

## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

[Book a demo](https://panop.io/demo)