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    CVE-2026-53790

    rsync before 3.5.0 contains multiple command and argument injection vulnerabilities that allow attackers to execute arbitrary commands by supplying malicious input through several code paths, including the RSYNC_CONNECT_PROG environment variable, daemon hooks, the rsync-ssl wrapper, and remote-shell command newline injection. Attackers can inject shell metacharacters or newline characters into unsanitized user-supplied values such as hostnames and hostspecs to execute arbitrary commands under the privileges of the rsync process or the invoking user.

    Published:Aug 13, 2026
    Last Modified:Aug 14, 2026
    EPS:Aug 13, 2026
    EPSS Score:0.00515
    CVSS Score:8.1

    Affected Products

    Vendor
    Rsync Project
    Product
    Rsync
    Vendor
    Samba
    Product
    Rsync

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-70453 (CVSS 8.7) — rsync before 3.5.0 contains an algorithmic complexity vulnerability in the hash_search() function that allows …
    CVE-2026-70454 (CVSS 7.6) — rsync 3.2.0 through 3.2.3 (openssl mode) and rsync-ssl through 3.4.4 (stunnel mode) contain a TLS certificate …
    CVE-2026-70455 (CVSS 8.7) — rsync 3.4.2 before 3.5.0 contains a denial of service vulnerability that allows a remote sender to exhaust sys…
    CVE-2026-70456 (CVSS 8.8) — rsync 3.0.1 before 3.5.0 contains an out-of-bounds write vulnerability in the read_args() function that allows…
    CVE-2026-70457 (CVSS 8.3) — rsync 3.2.3 before 3.5.0 contains an out-of-bounds write in parse_size_arg() where the return value of snprint…
    CVE-2026-70458 (CVSS 8.8) — rsync 3.0.0 before 3.5.0 contains an out-of-bounds write vulnerability that allows attackers to corrupt memory…
    CVE-2026-70459 (CVSS 6.9) — rsync 3.0.0 before 3.5.0 contains a null pointer dereference vulnerability in the daemon child process that al…
    CVE-2026-70460 (CVSS 9.2) — rsync 2.3.3 before 3.5.0 contains a path traversal vulnerability that allows a malicious sender to escape the …
    CVE-2026-70461 (CVSS 8.8) — rsync 3.2.5 before 3.5.0 contains a heap out-of-bounds write vulnerability that allows remote unauthenticated …

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High