CVE-2026-102674

mediumpriority · track · 24EPSS 0.002 · 14 %ileUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.24% (14th) EPSS

CVSS 6.1 · medium

Is it mine?

8 products

Check your exposure

Who says so?

2 sources

nvd · osv

EPSS · scored 2026-10-27

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 41.10.6, 42.9.2, 43.4.1, and 44.0.0-beta.5, windows opened from a sandboxed top-level document did not inherit that document's active HTML sandbox restrictions. Untrusted content in a sandboxed top-level document that was permitted to open popups could therefore create a window with the Electron application's full origin instead of the restricted origin intended by the sandbox. Applications that deny such popups with setWindowOpenHandler are not affected. This issue is fixed in versions 41.10.6, 42.9.2, 43.4.1, and 44.0.0-beta.5.

cvss

Technical severity, 0–10. One row per scoring source.

8.2

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.6–8.2

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 2.7

v3.18.2highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:Nsecondary · security-advisories@github.comexploitability 2.8 · impact 4.7

v3.18.2highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:Nsecondary · OSV

v3.15.6mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-266USCWE-266USCWE-693USCWE-693US

affected products (8)

Products and version ranges known to be affected.

electronjs electron< 41.10.6nvdUScpe:2.3:a:electronjs:electron:*:*:*:*:*:*:*:*
electronjs electron42.0.0 → 42.9.2nvdUScpe:2.3:a:electronjs:electron:*:*:*:*:*:*:*:*
electronjs electron43.0.0 → 43.4.1nvdUScpe:2.3:a:electronjs:electron:*:*:*:*:*:*:*:*
electronjs electron= 44.0.0nvdUScpe:2.3:a:electronjs:electron:*:*:*:*:*:*:*:*
npm electron< 41.10.6osvUSpkg:npm/electron
npm electron42.0.0-alpha.1 → 42.9.2osvUSpkg:npm/electron
npm electron43.0.0-alpha.1 → 43.4.1osvUSpkg:npm/electron
npm electron44.0.0-alpha.1 → 44.0.0-beta.5osvUSpkg:npm/electron

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-gr2m-v5gq-v685Electron: Windows opened from a sandboxed top-level document do not inherit its sandbox restrictions2026-09-29ghsa · osvUS
### Impact Windows opened from a sandboxed top-level document did not inherit that document's HTML `sandbox` restrictions, so content that was meant to run sandboxed could open a window with the app's full origin. GHSA-hq2x-r82h-9wj4 covers the same issue for sandboxed iframes. Apps are only affected if they render untrusted content in a sandboxed top-level document that allows popups. Apps that deny popups from untrusted content with `setWindowOpenHandler` are not affected. ### Workarounds Return `{ action: 'deny' }` from `setWindowOpenHandler` for windows opened by untrusted content. ### Fixed Versions * `44.0.0-beta.5` * `43.4.1` * `42.9.2` * `41.10.6` ### For more information If you have any questions or comments about this advisory, email us at [security@electronjs.org](mailto:security@electronjs.org)

sources

Which sources assert this record, and when.

nvd osv NVD CVE.org MITRE

published 2026-09-29modified 2026-10-15

references (9) nvd

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan