Electron: Registry key path injection in app.setAsDefaultProtocolClient on Windows (electron electron)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.24 % · percentile 16 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- GitHub_M
- NVD status
- Analyzed
Description
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 38.8.6, 39.8.1, 40.8.1, and 41.0.0, on Windows, app.setAsDefaultProtocolClient(protocol) did not validate the protocol name before writing to the registry. Apps that pass untrusted input as the protocol name may allow an attacker to write to arbitrary subkeys under HKCU\Software\Classes\, potentially hijacking existing protocol handlers. Apps are only affected if they call app.setAsDefaultProtocolClient() with a protocol name derived from external or untrusted input. Apps that use a hardcoded protocol name are not affected. This issue has been patched in versions 38.8.6, 39.8.1, 40.8.1, and 41.0.0.
Weaknesses (CWE)
- CWE-20 — Improper Input Validation
- CWE-74 — Improper Neutralization of Special Elements in Output Used by a Downstream Component
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 4.7 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N | GitHub_M |
| CVSS 3.1 | MEDIUM 4.7 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N | NVD · security-advisories@github.com (Secondary) |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N | NVD · nvd@nist.gov (Primary) |
Advisories
- GHSA-mwmh-mq4g-g6gr — Electron: Registry key path injection in app.setAsDefaultProtocolClient on Windows
European references
- ENISA EUVD · EUVD-2026-18945
- GCVE · GCVE-0-2026-34773
Affected configurations (NVD CPE)
cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*< 38.8.6cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*≥ 39.0.0 < 39.8.1cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*≥ 40.0.0 < 40.8.1cpe:2.3:a:electronjs:electron:41.0.0:alpha1:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:alpha2:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:alpha3:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:alpha4:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:alpha5:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:alpha6:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:beta1:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:beta2:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:beta3:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:beta4:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:beta5:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:beta6:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:beta7:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:beta8:*:*:*:node.js:*:*
Affected products
| Product | Versions |
|---|---|
| electron · electron | affected < 38.8.6 ; affected >= 39.0.0-alpha.1, < 39.8.1 ; affected >= 40.0.0-alpha.1, < 40.8.1 ; affected >= 41.0.0-alpha.1, < 41.0.0 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |