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    2 vulnerabilities by kopia

    CVE-2026-45695 (GCVE-0-2026-45695)

    Vulnerability from nvd – Published: 2026-07-16 15:42 – Updated: 2026-07-16 18:08
    VLAI
    Title
    Kopia: Unauthenticated RCE via SSH ProxyCommand Injection when --insecure --without-password is used
    Summary
    Kopia is a cross-platform backup tool for Windows, macOS, and Linux with fast incremental backups, client-side end-to-end encryption, compression, and data deduplication. Prior to 0.23.0, Kopia's HTTP server started with --without-password accepts unauthenticated requests to /api/v1/repo/exists and forwards attacker-supplied SFTP storage configuration to blob.NewStorage, where externalSSH: true and sshArguments containing -oProxyCommand=<cmd> can cause exec.CommandContext("ssh") to invoke the command through OpenSSH. This issue is fixed in version 0.23.0.
    Severity
    9.8 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
    • CWE-306 - Missing Authentication for Critical Function
    Assigner
    References
    Impacted products
    Vendor Product Version
    kopia kopia Affected: < 0.23.0
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-45695 (GCVE-0-2026-45695)

    Vulnerability from cvelistv5 – Published: 2026-07-16 15:42 – Updated: 2026-07-16 18:08
    VLAI
    Title
    Kopia: Unauthenticated RCE via SSH ProxyCommand Injection when --insecure --without-password is used
    Summary
    Kopia is a cross-platform backup tool for Windows, macOS, and Linux with fast incremental backups, client-side end-to-end encryption, compression, and data deduplication. Prior to 0.23.0, Kopia's HTTP server started with --without-password accepts unauthenticated requests to /api/v1/repo/exists and forwards attacker-supplied SFTP storage configuration to blob.NewStorage, where externalSSH: true and sshArguments containing -oProxyCommand=<cmd> can cause exec.CommandContext("ssh") to invoke the command through OpenSSH. This issue is fixed in version 0.23.0.
    Severity
    9.8 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
    • CWE-306 - Missing Authentication for Critical Function
    Assigner
    References
    Impacted products
    Vendor Product Version
    kopia kopia Affected: < 0.23.0
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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