Electron: Custom protocol with supportFetchAPI but not corsEnabled allows cross-origin reads

Date Aug 5, 2026
Type Vendor advisory
Signal High-risk advisory
Vendor / Product npm ยท electron
CVE CVE-2026-70604
High-risk advisory CVE-2026-70604

Summary

Electron: Custom protocol with supportFetchAPI but not corsEnabled allows cross-origin reads

Why it matters

GitHub has published a reviewed security advisory for electron. Prioritize it with other application dependency updates.

Operator check

Check whether electron is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available.

Sources

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.