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CVE PROGRAM SOURCE RECORD8.3 High

CVE-2026-56254

capacitor-updater - End-to-End Encryption Bypass via Private Key Distribution

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

capacitor-updater capacitor-updater

Default version status: unaffected

  • 0 to < 12.128.2affected
  • 12.128.2unaffected
pkg:npm/%40capgo/capacitor-updater

References