CVE-2026-53788
Fixed in a distro release EPSS <1%CVSS 6.5
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.
Products: RsyncProject rsync
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Alpine 3.21 | rsync | 3.5.0-r0 |
| Alpine 3.22 | rsync | 3.5.0-r0 |
| Alpine 3.23 | rsync | 3.5.0-r0 |
| Alpine 3.24 | rsync | 3.5.0-r0 |
| Amazon Linux 2023 | rsync | 3.5.1-1.amzn2023.0.1 |
| Amazon Linux 2023 | rsync-daemon | 3.5.1-1.amzn2023.0.1 |
| Debian 12 | rsync | no fix |
| Debian 13 | rsync | 3.5.0+ds1-0+deb13u1 |
| Debian 14 | rsync | 3.5.0+ds1-1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | rsync | 3.2.3-150400.3.34.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | rsync | 3.2.3-150400.3.34.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | rsync | 3.2.3-150400.3.34.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | rsync | 3.2.3-150400.3.34.1 |
| SUSE Linux Enterprise Micro 5.3 | rsync | 3.2.3-150400.3.34.1 |
| SUSE Linux Enterprise Micro 5.4 | rsync | 3.2.3-150400.3.34.1 |
| SUSE Linux Enterprise Micro 5.5 | rsync | 3.2.3-150400.3.34.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | rsync | 3.2.7-150600.3.24.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | rsync | 3.2.3-150400.3.34.1 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | rsync | 3.2.3-150400.3.34.1 |
| SUSE Linux Enterprise Server 15 SP6-LTSS | rsync | 3.2.7-150600.3.24.1 |
| SUSE Linux Enterprise Server 16.0 | rsync | 3.4.1-160000.6.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | rsync | 3.2.3-150400.3.34.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | rsync | 3.2.3-150400.3.34.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | rsync | 3.2.7-150600.3.24.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | rsync | 3.4.1-160000.6.1 |
| SUSE Linux Micro 6.0 | rsync | 3.2.7-8.1 |
| SUSE Linux Micro 6.1 | rsync | 3.3.0-slfo.1.1_7.1 |
| SUSE Linux Micro 6.2 | rsync | 3.4.1-160000.6.1 |
| Ubuntu 22.04 LTS | rsync | no fix |
| Ubuntu 24.04 LTS | rsync | no fix |
| Ubuntu 26.04 LTS | rsync | no fix |
| Ubuntu 26.10 | rsync | no fix |
| Ubuntu Pro 14.04 LTS | rsync | no fix |
| Ubuntu Pro 16.04 LTS | rsync | no fix |
| Ubuntu Pro 18.04 LTS | rsync | no fix |
| Ubuntu Pro 20.04 LTS | rsync | no fix |
| openSUSE Leap 16.0 | rsync | 3.4.1-160000.6.1 |
| openSUSE Tumbleweed | rsync | 3.5.1-1.1 |