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    2 vulnerabilities by capacitor-updater

    CVE-2026-56254 (GCVE-0-2026-56254)

    Vulnerability from nvd – Published: 2026-07-10 13:57 – Updated: 2026-07-10 15:17
    VLAI
    Title
    capacitor-updater - End-to-End Encryption Bypass via Private Key Distribution
    Summary
    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.
    Severity
    8.3 (High)
    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
    7 (High)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    capacitor-updater capacitor-updater Affected: 0 , < 12.128.2 (semver)
    Unaffected: 12.128.2 (semver)
    		Create a notification for this product.
    Date Public
    2026-02-10 00:00
    Show details on NVD website
    To clipboard 

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    CVE-2026-56254 (GCVE-0-2026-56254)

    Vulnerability from cvelistv5 – Published: 2026-07-10 13:57 – Updated: 2026-07-10 15:17
    VLAI
    Title
    capacitor-updater - End-to-End Encryption Bypass via Private Key Distribution
    Summary
    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.
    Severity
    8.3 (High)
    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
    7 (High)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    capacitor-updater capacitor-updater Affected: 0 , < 12.128.2 (semver)
    Unaffected: 12.128.2 (semver)
    		Create a notification for this product.
    Date Public
    2026-02-10 00:00
    Show details on NVD website
    To clipboard 

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