CVE-2026-53788 — rsync < 3.5.0 Newline Injection via name-converter uid/gid mapping
rsync before 3.5.0 contains a newline injection vulnerability in the name-converter uid/gid mapping interface that allows local attackers to forge protocol messages by creating …
Published: 2026-08-13 · CVSS: 6.9 · CVSS 4.0
rsync before 3.5.0 contains a newline injection vulnerability in the name-converter uid/gid mapping interface that allows local attackers to forge protocol messages by creating user or group names containing newline characters. Attackers can inject malicious newline characters into names communicated over the pipe-based line-oriented protocol to cause the rsync daemon to process attacker-influenced data as legitimate protocol input, corrupting uid/gid mapping logic.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7