High severityNVD Advisory· Published Jun 30, 2026· Updated Jul 2, 2026
CVE-2026-54673
CVE-2026-54673
Description
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
builder-util-runtimenpm | < 9.7.0 | 9.7.0 |
Affected products
2- Range: <9.7.0
Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-p2f4-r6v6-j797ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-54673ghsaADVISORY
- github.com/electron-userland/electron-builder/commit/22a7532bd01b9fb42cff7c58d599c7ad683569fenvdWEB
- github.com/electron-userland/electron-builder/pull/9834ghsaWEB
- github.com/electron-userland/electron-builder/releases/tag/[email protected]ghsaWEB
- github.com/electron-userland/electron-builder/security/advisories/GHSA-p2f4-r6v6-j797nvdWEB
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