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Not in CISA KEV
LOW severity

GHSA-9899-m83m-qhpj

LOW

GHSA-9899-m83m-qhpj is a low-severity (CVSS 3.3) CWE-862 vulnerability in electron. O3 Security confirms whether GHSA-9899-m83m-qhpj is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Electron: USB device selection not validated against filtered device list

Also known asCVE-2026-34766
Published
Apr 3, 2026
Updated
Apr 6, 2026
Affected
4 pkgs
Patched
4 / 4
Exploits
None indexed
Exploitation data as of Apr 6, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Real-World Exposure

4 pkgs affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, a proxy for how much of the ecosystem is exposed.

electronnpm
5.8Mdownloads / week

Description

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 [email protected]

Affected Packages

4 total 4 fixed
EcosystemPackageVulnerable rangeFix
📦npmelectronall versions38.8.6
📦npmelectron39.0.0-alpha.1&&< 39.8.039.8.0
📦npmelectron40.0.0-alpha.1&&< 40.7.040.7.0
📦npmelectron41.0.0-alpha.1&&< 41.0.0-beta.841.0.0-beta.8

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for electron. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update electron to 38.8.6 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-9899-m83m-qhpj is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-9899-m83m-qhpj is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-9899-m83m-qhpj. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### 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 sid
O3 Security · Impact-Aware SCA

Is GHSA-9899-m83m-qhpj in your dependencies?

O3 detects GHSA-9899-m83m-qhpj across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

GHSA-9899-m83m-qhpj: electron (Low 3.3) | O3 Security