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CVE PROGRAM SOURCE RECORD9.2 Critical

CVE-2026-53790

rsync < 3.5.0 Command Injection via Multiple Code Paths

Description

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.

Affected products

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

RsyncProject rsync

Default version status: unaffected

  • 0 to ≤ 3.4.4affected
  • 3.5.0unaffected

References