CVE-2026-70463
Fixed in a distro release EPSS <1%CVSS 8.1
rsync 3.1.0 before 3.5.0 contains an authorization bypass in auth users directive parsing. The auth users parser uses comma-only tokenization when splitting the user list, which fails to correctly handle entries of the form @Group Name where the group name contains a space. The space within the group name causes the parser to split the entry at the space boundary, discarding the deny rule associated with the group. An authenticated user whose username or group membership would be denied by an @Group Name auth users entry can connect to a restricted module because the deny rule is silently discarded during parsing.
Products: RsyncProject rsync
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux 10 | rsync | 3.5.0-3.el10_2 |
| AlmaLinux 10 | rsync-daemon | 3.5.0-3.el10_2 |
| AlmaLinux 10 | rsync-rrsync | 3.5.0-3.el10_2 |
| AlmaLinux 8 | rsync | 3.1.3-28.el8_10 |
| AlmaLinux 8 | rsync-daemon | 3.1.3-28.el8_10 |
| AlmaLinux 9 | rsync | 3.2.7-1.el9_8 |
| AlmaLinux 9 | rsync-daemon | 3.2.7-1.el9_8 |
| AlmaLinux 9 | rsync-rrsync | 3.2.7-1.el9_8 |
| 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 |
| Red Hat Enterprise Linux 10.2 | rsync | 0:3.5.0-3.el10_2 |
| Red Hat Enterprise Linux 10.2 | rsync-daemon | 0:3.5.0-3.el10_2 |
| Red Hat Enterprise Linux 10.2 | rsync-debuginfo | 0:3.5.0-3.el10_2 |
| Red Hat Enterprise Linux 10.2 | rsync-debugsource | 0:3.5.0-3.el10_2 |
| Red Hat Enterprise Linux 10.2 | rsync-rrsync | 0:3.5.0-3.el10_2 |
| Red Hat Enterprise Linux 8 | rsync | 0:3.1.3-28.el8_10 |
| Red Hat Enterprise Linux 8 | rsync-daemon | 0:3.1.3-28.el8_10 |
| Red Hat Enterprise Linux 8 | rsync-debuginfo | 0:3.1.3-28.el8_10 |
| Red Hat Enterprise Linux 8 | rsync-debugsource | 0:3.1.3-28.el8_10 |
| Red Hat Enterprise Linux 9 | rsync | 0:3.2.7-1.el9_8 |
| Red Hat Enterprise Linux 9 | rsync-daemon | 0:3.2.7-1.el9_8 |
| Red Hat Enterprise Linux 9 | rsync-debuginfo | 0:3.2.7-1.el9_8 |
| Red Hat Enterprise Linux 9 | rsync-debugsource | 0:3.2.7-1.el9_8 |
| Red Hat Enterprise Linux 9 | rsync-rrsync | 0:3.2.7-1.el9_8 |
| Rocky Linux 10 | rsync | 0:3.5.0-3.el10_2 |
| Rocky Linux 8 | rsync | 0:3.1.3-28.el8_10 |
| Rocky Linux 9 | rsync | 0:3.2.7-1.el9_8 |
| 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 |