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Vulnerabilities

Security fix · CVE-2026-114121

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS.

Published Oct 21, 2026 · catalog updated Oct 22, 2026 · Electron is a framework

Last checked Nov 6, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-114121. EPSS is 0.22%. Act only if a listed version of Electron is a framework is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Electron is a framework).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.4
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.22%
Remediation
Version ranges on file
Affected products
npm electron · package npm

### Impact Requests to open external protocol URLs could be attributed to a document other than the one that asked for them, so the passed to was a trusted origin for a launch untrusted content had requested. An origin-based handler could therefore let untrusted content launch an OS-registered external application. Apps are only affected if they grant based on the requesting origin and let untrusted content open or navigate windows. Apps whose permission handler denies for untrusted content are not affected. ### Workarounds Deny the permission for untrusted content, or deny the windows it opens with . ### Fixed Versions * * * * ### For more information If you have any questions or comments about this advisory, email us at [security@electronjs.org](mailto:security@electronjs.org)

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • npm electron< 42.11.3
  • npm electron>= 43.0.0-alpha.1, < 43.7.0
  • npm electron>= 44.0.0-alpha.1, < 44.3.0
  • npm electron>= 45.0.0-alpha.1, < 45.0.0-alpha.5
  • package npmversion unspecified

How to fix CVE-2026-114121

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-114121. EPSS is 0.22%. Act only if a listed version of Electron is a framework is installed.

Which versions are affected?

Compare what you have installed with < 42.11.3, >= 43.0.0-alpha.1, < 43.7.0, >= 44.0.0-alpha.1, < 44.3.0, >= 45.0.0-alpha.1, < 45.0.0-alpha.5. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-346. EPSS 0.22%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 21, 2026 · NIST NVD

    Detected

    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 reques

  2. Oct 22, 2026 · GitHub Advisory Database

    Updated

    ### Impact Requests to open external protocol URLs could be attributed to a document other than the one that asked for them, so the passed to was a trusted origin for a launch untrusted content had requested. An origin-based handler could therefore let untrusted content launch an OS-registered external application. Apps are only affected if they grant based on the requesting origin and let untrust

Sources

  • CVE.orgVulnerability recordCVE-2026-114121

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-114121

    30-day exploitation probability 0.22%

    first.org
  • GitHub Advisory DatabasePackage advisoryGHSA-997q-gvvc-jwmx

    Electron: openExternal permission requests can be attributed to the wrong origin

    github.com
  • GitLab Advisory DatabasePackage advisoryCVE-2026-114121

    Requests to open external protocol URLs could be attributed to a document other than the one that asked for them, so the requestingUrl passed to session.setPermissionRequestHandler was a trusted origin for a launch untrusted content had requested. An origin-based handler could therefore let untrusted content launch an OS-registered external application. Apps are only affected if they grant openExt

    advisories.gitlab.com
  • NIST NVDVulnerability recordCVE-2026-114121

    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,

    nvd.nist.gov
  • Snyk Vulnerability DatabasePackage advisorySNYK-JS-ELECTRON-21431575

    Origin Validation Error

    security.snyk.io

References

Freshness

Last verified in this catalog Nov 6, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 6, 2026
  • Snyk Vulnerability DatabaseOct 25, 2026
  • GitHub Advisory DatabaseOct 23, 2026
  • GitLab Advisory DatabaseOct 23, 2026
  • CVE.orgOct 21, 2026
  • NIST NVDOct 21, 2026