Skip to content
Fencer Intel
high 8.3

CVE-2026-102676 json

Electron: <webview> can enable Node.js integration in Web Workers despite embedder restrictions

published last mo. modified 25d ago also EUVD-2026-89095 , GHSA-9qh4-3jw8-366w

cvss
8.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits
0
none known

Summary

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.

Patch / fix

  • npm electron 41.10.6, 42.9.2, 43.4.1, 44.0.0-beta.5
  • atom electron 41.10.6, 42.9.2, 43.4.1, 44.0.0-beta.5
  • mozilla firefox 41.10.6, 42.9.2, 43.4.1, 44.0.0-beta.5
  • electronjs electron 41.10.6, 42.9.2, 43.4.1, 44.0.0-beta.5

Is CVE-2026-102676 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-102676 updated cvss 8.3

electron: electron: Privilege escalation via unauthorized Node.js integration in web workers

  • Red Hat Build of Podman Desktop rh-podman-desktop Red Hat Enterprise Linux 10 podman-desktop, rh-podman-desktop
    affected: workaround, no fix available “Disable the <webview> tag in application configurations or ensure the host embedder process remains strictly sandboxed.”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
last mo.

Exploit prediction

0.48% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 8.3 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
GitHub 3.1 8.3 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
npm 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
41.10.6
42.9.2
43.4.1
44.0.0-beta.5

Affected products

  • electron electron

Classification

Weakness
  • CWE-269 Improper Privilege Management
  • CWE-1188 Initialization of a Resource with an Insecure Default

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.