Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| RsyncProject | rsync | ≤ 3.4.4 | 3.5.0 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | rsync | 3.5.0+ds1-1 | — |
| Debian 13 | rsync | 3.5.0+ds1-0+deb13u1 | — |
| Debian 12 | rsync | 3.5.0+ds1-0+deb12u1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | rsync | No fix yet | — |
| Ubuntu 24.04 LTS | rsync | No fix yet | — |
| Ubuntu 22.04 LTS | rsync | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | rsync | No fix yet | — |
| Ubuntu Pro 18.04 LTS | rsync | No fix yet | — |
| Ubuntu Pro 16.04 LTS | rsync | No fix yet | — |
| Ubuntu Pro 14.04 LTS | rsync | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | rsync | 3.2.7-150600.3.24.1 | SUSE-SU-2026:3657-1 |
| SLES 15 SP6 | rsync | 3.2.7-150600.3.24.1 | SUSE-SU-2026:3657-1 |
| SLES 15 SP5 | rsync | 3.2.3-150400.3.34.1 | SUSE-SU-2026:3634-1 |
| SLES 15 SP4 | rsync | 3.2.3-150400.3.34.1 | SUSE-SU-2026:3634-1 |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | rsync | 3.4.1-160000.6.1 | SUSE-SU-2026:23323-1 |
| SLES for SAP 15 SP6 | rsync | 3.2.7-150600.3.24.1 | SUSE-SU-2026:3657-1 |
| SLES for SAP 15 SP5 | rsync | 3.2.3-150400.3.34.1 | SUSE-SU-2026:3634-1 |
| SLES for SAP 15 SP4 | rsync | 3.2.3-150400.3.34.1 | SUSE-SU-2026:3634-1 |
| SLES 16.0 | rsync | 3.4.1-160000.6.1 | SUSE-SU-2026:23323-1 |
| SLE Micro 6.2 | rsync | 3.4.1-160000.6.1 | SUSE-SU-2026:23289-1 |
| SLE Micro 6.1 | rsync | 3.3.0-slfo.1.1_7.1 | SUSE-SU-2026:23254-1 |
| SLE Micro 6.0 | rsync | 3.2.7-8.1 | SUSE-SU-2026:23253-1 |
| SLE Micro 5.5 | rsync | 3.2.3-150400.3.34.1 | SUSE-SU-2026:3634-1 |
| SLE Micro 5.4 | rsync | 3.2.3-150400.3.34.1 | SUSE-SU-2026:3634-1 |
| SLE Micro 5.3 | rsync | 3.2.3-150400.3.34.1 | SUSE-SU-2026:3634-1 |
| SLE HPC 15 SP5 | rsync | 3.2.3-150400.3.34.1 | SUSE-SU-2026:3634-1 |
| SLE HPC 15 SP4 | rsync | 3.2.3-150400.3.34.1 | SUSE-SU-2026:3634-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | rsync | 3.5.1-1.1 | openSUSE-SU-2026:11869-1 |
| openSUSE Leap 16.0 | rsync | 3.4.1-160000.6.1 | openSUSE-SU-2026:21650-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | rsync | 3.5.0-r0 | — |
| Alpine v3.23 | rsync | 3.5.0-r0 | — |
| Alpine v3.22 | rsync | 3.5.0-r0 | — |
| Alpine v3.21 | rsync | 3.5.0-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | rsync +1 | 3.5.1-1.amzn2023.0.1 | ALAS2023-2026-3131 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | rsync | 3.5.0-1 | — |
Advisories 10
- WID-SEC-2026-2817 Rsync: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 8, 2026
- ALAS2023-2026-3131 Important: rsync security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Sep 28, 2026
- openSUSE-SU-2026:11869-1 rsync-3.5.1-1.1 on GA media SUSE / openSUSE Security Updates · Sep 24, 2026
- SUSE-SU-2026:23323-1 Security update for rsync SUSE / openSUSE Security Updates · Sep 10, 2026
- SUSE-SU-2026:23289-1 Security update for rsync SUSE / openSUSE Security Updates · Sep 4, 2026
- SUSE-SU-2026:23254-1 Security update for rsync SUSE / openSUSE Security Updates · Aug 31, 2026
- SUSE-SU-2026:23253-1 Security update for rsync SUSE / openSUSE Security Updates · Aug 27, 2026
- openSUSE-SU-2026:21650-1 Security update for rsync SUSE / openSUSE Security Updates · Aug 27, 2026
- SUSE-SU-2026:3657-1 Security update for rsync SUSE / openSUSE Security Updates · Aug 21, 2026
- SUSE-SU-2026:3634-1 Security update for rsync SUSE / openSUSE Security Updates · Aug 18, 2026
References
- GitHub Security Advisory (GHSA-p4c5-8c68-5fjq) vendor-advisory
- rsync 3.5.0 Release Notes release-notes
- https://www.vulncheck.com/advisories/rsync-newline-injection-via-name-converter-uid-gid-mapping third-party-advisory