VDB
CVE-2026-54673
CVE-2026-54673
PUBLISHED
CVSS 8.2 HIGH
Reported by GitHub_M · Published June 30, 2026
electron-updater allows for automatic updates for Electron apps. Prior to 9.7.0, the HTTP redirect handler (HttpExecutor.prepareRedirectUrlOptions) only stripped a credential header whose key string matched exactly lowercase "authorization", exposing credentials. Other credential-bearing headers — most notably PRIVATE-TOKEN (used by GitLab's personal access token flow) and mixed-case Authorization (used by GitLab's Bearer/OAuth flow) — were not stripped and could be forwarded to an attacker-controlled cross-origin redirect destination. This issue has been fixed in version 9.7.0.
Risk Scores
CVSS 4.0
8.2
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| electron-userland | electron-builder | < 26.15.0 |
| electron-userland | builder-util-runtime | < 9.7.0 |
| npm | builder-util-runtime | 0 |
| electron-userland | electron-builder | < 26.15.0, < 26.15.0, < 26.15.0 |
| electron-userland | builder-util-runtime | < 9.7.0, < 9.7.0, < 9.7.0 |
Timeline
- Jun 30, 2026 CVE Published
- Jul 1, 2026 EPSS Score
- Jul 1, 2026 Coalition ESS Score
- Jul 5, 2026 Security Advisory
- Aug 7, 2026 EPSS Score
- Aug 24, 2026 EPSS Score
- Aug 27, 2026 EPSS Score
- Sep 5, 2026 EPSS Score
References
- https://github.com/electron-userland/electron-builder/security/advisories/GHSA-p2f4-r6v6-j797 x_refsource_CONFIRM
- https://github.com/electron-userland/electron-builder/commit/22a7532bd01b9fb42cff7c58d599c7ad683569fe x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-54673 advisory
- https://github.com/advisories/GHSA-p2f4-r6v6-j797 advisory
- https://github.com/electron-userland/electron-builder/pull/9834 fix
- https://github.com/electron-userland/electron-builder/releases/tag/electron-builder@26.15.0 fix