Critical severity · published Sep 29, 2026
CVE-2026-102676
Electron: <webview> can enable Node.js integration in Web Workers despite embedder restrictions
9.8
CVSS
0.5%
EPSS
No
On KEV
Description
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 41% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EL
electron · electron
< 41.10.6; >= 42.0.0-alpha.1, < 42.9.2; >= 43.0.0-alpha.1, < 43.4.1; >= 44.0.0-alpha.1, < 44.0.0-beta.5 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-102676
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-102676
x_refsource_CONFIRM
https://github.com/electron/electron/security/advisories/GHSA-9qh4-3jw8-366w
x_refsource_MISC
https://github.com/electron/electron/commit/6462a2e1dc4e6adffd3b7d9b9be1474c45dcbbe2
x_refsource_MISC
https://github.com/electron/electron/commit/9a675aef8822bae4088567822969f900b3a37671
x_refsource_MISC
https://github.com/electron/electron/commit/b3ae0aab5cf81c2ed03d04df1ae8e69ecfab7886
x_refsource_MISC
https://github.com/electron/electron/commit/cd34f335c8664613db5b6e61ae51e2e1846233ae
x_refsource_MISC
https://github.com/electron/electron/releases/tag/v41.10.6
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