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TI-2026-78865 Aliases CVE-2026-114121GHSA-997q-gvvc-jwmx

Electron attributes openExternal permission requests to wrong origin

Priority LOW 24CWE-346Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Security bypass
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-346.

Summary

Electron versions before 42.11.3, from 43.0.0-alpha.1 before 43.7.0, from 44.0.0-alpha.1 before 44.3.0, and from 45.0.0-alpha.1 before 45.0.0-alpha.5 attribute openExternal requests to the wrong document (CWE-346). The requestingUrl can name trusted content for a launch that untrusted content requested. An app that grants openExternal by requesting origin and lets untrusted content open or navigate windows lets that content launch an external application.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 42.11.3, 43.7.0, 44.3.0, and 45.0.0-alpha.5, requests to open external protocol URLs could be attributed to a document other than the one that initiated them, causing the requestingUrl passed to session.setPermissionRequestHandler to identify trusted content for a launch requested by untrusted content. An application that grants openExternal based on the requesting origin and allows untrusted content to open or navigate windows could therefore allow that content to launch an OS-registered external application. This issue is fixed in versions 42.11.3, 43.7.0, 44.3.0, and 45.0.0-alpha.5.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00219 12th percentileScored 2026-11-07
Fix Fixed electron (electron): 42.11.3, 43.7.0, 44.3.0 +1electron (npm): 42.11.3, 43.7.0, 44.3.0 +1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
electronelectronbefore 42.11.3; 43.0.0-alpha.1 to before 43.7.0; 44.0.0-alpha.1 to before 44.3.0; 45.0.0-alpha.1 to before 45.0.0-alpha.542.11.3, 43.7.0, 44.3.0, 45.0.0-alpha.5Patch availableCNA
—electron (npm)before 42.11.342.11.3Patch availableGHSA-997q-gvvc-jwmx
—electron (npm)43.0.0-alpha.1 to before 43.7.043.7.0Patch availableGHSA-997q-gvvc-jwmx
—electron (npm)44.0.0-alpha.1 to before 44.3.044.3.0Patch availableGHSA-997q-gvvc-jwmx
—electron (npm)45.0.0-alpha.1 to before 45.0.0-alpha.545.0.0-alpha.5Patch availableGHSA-997q-gvvc-jwmx
  • electron Vendorelectron Affected before 42.11.3; 43.0.0-alpha.1 to before 43.7.0; 44.0.0-alpha.1 to before 44.3.0; 45.0.0-alpha.1 to before 45.0.0-alpha.5 Fixed in 42.11.3, 43.7.0, 44.3.0, 45.0.0-alpha.5 Patch available CNA
  • electron (npm) Vendor— Affected before 42.11.3 Fixed in 42.11.3 Patch available GHSA-997q-gvvc-jwmx
  • electron (npm) Vendor— Affected 43.0.0-alpha.1 to before 43.7.0 Fixed in 43.7.0 Patch available GHSA-997q-gvvc-jwmx
  • electron (npm) Vendor— Affected 44.0.0-alpha.1 to before 44.3.0 Fixed in 44.3.0 Patch available GHSA-997q-gvvc-jwmx
  • electron (npm) Vendor— Affected 45.0.0-alpha.1 to before 45.0.0-alpha.5 Fixed in 45.0.0-alpha.5 Patch available GHSA-997q-gvvc-jwmx

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:electronjs:electron:*:*:*:*:*:*:*:*——Electronjs
  • cpe:2.3:a:electronjs:electron:*:*:*:*:*:*:*:* Versions — — ·Electronjs

Remediation

Upgrade Electron to 42.11.3, 43.7.0, 44.3.0, or 45.0.0-alpha.5, matching the release line in use.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

  • Fix · CNA electron (electron) Fixed in 42.11.3, 43.7.0, 44.3.0, 45.0.0-alpha.5
  • Fix · GHSA-997q-gvvc-jwmx electron (npm) Fixed in 42.11.3 Advisory →
  • Fix · GHSA-997q-gvvc-jwmx electron (npm) Fixed in 43.7.0 Advisory →
  • Fix · GHSA-997q-gvvc-jwmx electron (npm) Fixed in 44.3.0 Advisory →
  • Fix · GHSA-997q-gvvc-jwmx electron (npm) Fixed in 45.0.0-alpha.5 Advisory →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-21 Threatist record created from CVE-2026-114121
  2. 2026-10-22 Alias added: GHSA-997q-gvvc-jwmx
  3. 2026-10-22 Fix available: npm/[email protected], npm/[email protected], npm/[email protected] +1 · GHSA-997q-gvvc-jwmx
  4. 2026-10-22 CVSS score added · GHSA-997q-gvvc-jwmx
  5. 2026-10-22 Weakness changed · GHSA-997q-gvvc-jwmx
  6. 2026-10-22 17 new references · GHSA-997q-gvvc-jwmx
  7. 2026-10-23 Priority changed: MEDIUM → LOW
  8. 2026-10-28 CISA SSVC decision points changed
  9. 2026-11-06 Affected versions changed · Red Hat
  10. 2026-11-06 CVSS score added · Red Hat

References

Advisory 1

Other 16

  • TI-2026-39496 Information disclosure in electron-builder CVSS 4.0HIGH 8.2
  • TI-2024-26621 Code Signing Bypass on Windows in electron-updater < 6.3.0-alpha.6 CVSS 3.1HIGH 7.5
  • TI-2023-09452 Content-Secrity-Policy disabling eval not applied consistently in renderers with sandbox disabled in Electron CVSS 3.1CRITICAL 9.8
  • TI-2026-39157 Electron: Buffer performs incorrect byte length calculations resulting in heap buffer under/overflow CVSS 4.0CRITICAL 9.3
  • TI-2017-09308 GitHub Electron before 1.6.8 allows remote command execution because of a nodeIntegration… CVSS 3.0HIGH 8.1
  • TI-2022-11788 Exposure of Resource to Wrong Sphere in Electron CVSS 3.1CRITICAL 9.8
See all 74 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences