CVE-2026-56254
capacitor-updater - End-to-End Encryption Bypass via Private Key Distribution
CVSS Score
7.0
EPSS Score
0.0%
EPSS Percentile
0th
In @capgo/capacitor-updater (Cap-go/capgo) before 12.128.2, the end-to-end encryption scheme distributes the private key to each device that downloads the app. Because the public key can be derived from the private key, an attacker performing a man-in-the-middle attack or compromising the Capgo server can create a validly signed update bundle and cause devices to install an update not produced by the original app maker.
| CWE | CWE-320 |
| Vendor | capacitor-updater |
| Product | capacitor-updater |
| Published | Jul 10, 2026 |
| Last Updated | Jul 10, 2026 |
Stay Ahead of the Next One
Get instant alerts for capacitor-updater capacitor-updater
Be the first to know when new high vulnerabilities affecting capacitor-updater capacitor-updater are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
High
Availability
Low
Affected Versions
capacitor-updater / capacitor-updater
0 < 12.128.2