CVE-2026-53790 — rsync < 3.5.0 Command Injection via Multiple Code Paths
rsync before 3.5.0 contains multiple command and argument injection vulnerabilities that allow attackers to execute arbitrary commands by supplying malicious input through sever…
Published: 2026-08-13 · CVSS: 9.2 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7