CVE-2026-54673

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/electron-userland/electron-builder/commit/22a7532bd01b9fb42cff7c58d599c7ad683569fe	Patch
https://github.com/electron-userland/electron-builder/security/advisories/GHSA-p2f4-r6v6-j797	Vendor Advisory Exploit Mitigation Patch
https://github.com/electron-userland/electron-builder/security/advisories/GHSA-p2f4-r6v6-j797	Vendor Advisory Exploit Mitigation Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:electron:builder-util-runtime::::::node.js::*
	cpe:2.3:a:electron:electron-builder::::::node.js::*

History

No history.

Information

Published : 2026-06-30 23:17

Updated : 2026-08-26 19:13

NVD link : CVE-2026-54673

Mitre link : CVE-2026-54673

CVE.ORG link : CVE-2026-54673

JSON object : View

Products Affected

electron

electron-builder
builder-util-runtime

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

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