VULNERABILITY INTELLIGENCE
CVE-2026-56254
CVSS score8.3 HIGH
EPSS probability0.19%
CISA KEVNot currently listed
Published2026-07-10
Last modified2026-10-25
CVSS vectorCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
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.