Electron: Extension tab APIs operate across session boundaries (electron electron)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.26 % · percentile 17 ()
- 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 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3, extension tab and scripting APIs were not scoped to the extension's own session. A malicious or compromised extension loaded into one session could navigate, script, and read from windows belonging to a different session. Apps are only affected if they load Chrome extensions via session.loadExtension and rely on separate sessions to isolate that extension from other content. This issue is fixed in versions 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3.
Weaknesses (CWE)
- CWE-284 — Improper Access Control
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.6 | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:N | GitHub_M |
| CVSS 3.1 | MEDIUM 6.6 | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:N | NVD · security-advisories@github.com (Secondary) |
Advisories
- GHSA-m55f-7gqj-fr98 — Electron: Extension tab APIs operate across session boundaries
European references
- ENISA EUVD · EUVD-2026-53435
- GCVE · GCVE-0-2026-70602
Affected configurations (NVD CPE)
cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*< 39.8.8cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*≥ 40.0.0 < 40.9.0cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*≥ 41.0.0 < 41.2.1cpe:2.3:a:electronjs:electron:42.0.0:alpha1:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:42.0.0:alpha2:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:42.0.0:alpha3:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:42.0.0:alpha4:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:42.0.0:alpha5:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:42.0.0:alpha6:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:42.0.0:beta1:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:42.0.0:beta2:*:*:*:node.js:*:*
Affected products
| Product | Versions |
|---|---|
| electron · electron | affected < 39.8.8 ; affected >= 40.0.0-alpha.1, < 40.9.0 ; affected >= 41.0.0-alpha.1, < 41.2.1 ; affected >= 42.0.0-alpha.1, < 42.0.0-beta.3 |
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 |