CVE-2026-102676

criticalpriority · track · 39OT risk · elevatedEPSS 0.005 · 41 %ileUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.48% (41st) EPSS

CVSS 9.8 · critical

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, an Electron <webview> guest could enable nodeIntegrationInWorker for its Web Workers even when the unsandboxed embedder had Node.js integration disabled, allowing untrusted guest content to create a Node-enabled worker with more privilege than the embedder granted. Applications that do not enable the <webview> tag or that keep the embedder sandboxed 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.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.3–9.8

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.18.3highCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:Hsecondary · security-advisories@github.comexploitability 1.6 · impact 6

v3.18.3highCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:Hsecondary · OSV

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

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

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-1188USCWE-1188USCWE-269USCWE-269US

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-9qh4-3jw8-366wElectron: <webview> can enable Node.js integration in Web Workers despite embedder restrictions2026-09-29ghsa · osvUS
### Impact A `<webview>` could enable Node.js integration in its Web Workers even when its embedder had Node.js integration disabled, giving guest content more privilege than the embedder allowed. Apps are only affected if they enable the `<webview>` tag and the embedder is unsandboxed. Apps that do not use `<webview>`, or that keep the embedder sandboxed, are not affected. ### Workarounds Remove `nodeIntegrationInWorker` from the guest preferences in a `will-attach-webview` handler, or do not enable the `<webview>` tag when loading 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

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