CVE-2026-70464
Fixed in a distro release EPSS <1%CVSS 7.5
rsync daemon 2.0.0 before 3.5.0 contains a denial of service vulnerability that allows unauthenticated remote attackers to exhaust daemon connection slots by stalling the handshake process before or after module selection without triggering the I/O timeout. Attackers can open many simultaneous connections and trickle data at the minimum rate to avoid timeout, or stall entirely before module selection where no timeout applies, consuming all available connection slots and denying service to legitimate clients.
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 |