CVE-2026-34766
mediumpriority · track · 22OT risk · elevatedEPSS 0.002 · 5 %ileEUUSEPSS · scored 2026-10-27
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8, the select-usb-device event callback did not validate the chosen device ID against the filtered list that was presented to the handler. An app whose handler could be influenced to select a device ID outside the filtered set would grant access to a device that did not match the renderer's requested filters or was listed in exclusionFilters. The WebUSB security blocklist remained enforced regardless, so security-sensitive devices on the blocklist were not affected. The practical impact is limited to apps with unusual device-selection logic. This issue has been patched in versions 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.3–5.4
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
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affected products (12)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- GHSA-9899-m83m-qhpjElectron: USB device selection not validated against filtered device list2026-04-03ghsa · osvUS
### Impact The `select-usb-device` event callback did not validate the chosen device ID against the filtered list that was presented to the handler. An app whose handler could be influenced to select a device ID outside the filtered set would grant access to a device that did not match the renderer's requested `filters` or was listed in `exclusionFilters`. The WebUSB security blocklist remained enforced regardless, so security-sensitive devices on the blocklist were not affected. The practical impact is limited to apps with unusual device-selection logic. ### Workarounds There are no app side workarounds, you must update to a patched version of Electron. ### Fixed Versions * `41.0.0-beta.8` * `40.7.0` * `39.8.0` * `38.8.6` ### For more information If there are any questions or comments about this advisory, send an email to [security@electronjs.org](mailto:security@electronjs.org)
also known as (3)
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sources
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references (4)
External citations — patches, advisories, analysis.
- https://github.com/electron/electron/releasesPatchcnnvd
- https://github.com/electron/electron/security/advisories/GHSA-9899-m83m-qhpjcnnvd
- https://github.com/electron/electron/security/advisories/GHSA-9899-m83m-qhpjenisa_euvd
- https://github.com/electron/electron/security/advisories/GHSA-9899-m83m-qhpjVendor Advisorynvd
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