Vulnerability · Published Aug 13, 2026 · Assigned by VulnCheck
CVE-2026-53795rsync < 3.5.0 Arbitrary File Write via --temp-dir/--link-dest
High 8.1
In plain English
A high-severity security flaw in rsync from RsyncProject. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
rsync before 3.5.0 contains an arbitrary file write vulnerability that allows attackers to write files outside the intended destination tree by specifying an absolute path via --temp-dir or --link-dest options. The rename-confinement logic is bypassed when these options resolve to paths outside the destination tree, enabling attacker-controlled values to write files to arbitrary locations accessible to the rsync process.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:10 | rsync | 3.5.0-3.el10_2 | ALSA-2026:67463 |
| AlmaLinux:8 | rsync | 3.1.3-28.el8_10 | ALSA-2026:74095 |
| AlmaLinux:9 | rsync | 3.2.7-1.el9_8 | ALSA-2026:67462 |
| AlmaLinux:10 | rsync-daemon | 3.5.0-3.el10_2 | ALSA-2026:67463 |
| AlmaLinux:8 | rsync-daemon | 3.1.3-28.el8_10 | ALSA-2026:74095 |
| AlmaLinux:9 | rsync-daemon | 3.2.7-1.el9_8 | ALSA-2026:67462 |
| AlmaLinux:10 | rsync-rrsync | 3.5.0-3.el10_2 | ALSA-2026:67463 |
| AlmaLinux:9 | rsync-rrsync | 3.2.7-1.el9_8 | ALSA-2026:67462 |
| Alpine:v3.21 | rsync | 3.5.0-r0 | ALPINE-CVE-2026-53795 |
| Alpine:v3.22 | rsync | 3.5.0-r0 | ALPINE-CVE-2026-53795 |
| Alpine:v3.23 | rsync | 3.5.0-r0 | ALPINE-CVE-2026-53795 |
| Alpine:v3.24 | rsync | 3.5.0-r0 | ALPINE-CVE-2026-53795 |
| Debian:12 | rsync | no fix listed | DEBIAN-CVE-2026-53795 |
| Debian:13 | rsync | 3.5.0+ds1-0+deb13u1 | DEBIAN-CVE-2026-53795 |
| Debian:14 | rsync | 3.5.0+ds1-1 | DEBIAN-CVE-2026-53795 |
| Rocky Linux:10 | rsync | 0:3.5.0-3.el10_2 | RLSA-2026:67463 |
| Rocky Linux:8 | rsync | 0:3.1.3-28.el8_10 | RLSA-2026:74095 |
| Rocky Linux:9 | rsync | 0:3.2.7-1.el9_8 | RLSA-2026:67462 |
| Ubuntu:22.04:LTS | rsync | no fix listed | UBUNTU-CVE-2026-53795 |
| Ubuntu:24.04:LTS | rsync | no fix listed | UBUNTU-CVE-2026-53795 |
| Ubuntu:26.04:LTS | rsync | no fix listed | UBUNTU-CVE-2026-53795 |
| Ubuntu:26.10 | rsync | no fix listed | UBUNTU-CVE-2026-53795 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| RsyncProject | rsync | 0 – through 3.4.4 |
Weakness: CWE-59 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
References
- GitHub Security Advisory (GHSA-m9vj-637x-v6pq) vendor-advisory
- rsync 3.5.0 Release Notes release-notes
- https://www.vulncheck.com/advisories/rsync-arbitrary-file-write-via-temp-dir-link-dest third-party-advisory