CVE-2026-43619
Publication date 20 May 2026
Last updated 21 May 2026
Ubuntu priority
Description
Rsync version 3.4.2 and prior contain symlink race condition vulnerabilities in path-based system calls including chmod, lchown, utimes, rename, unlink, mkdir, symlink, mknod, link, rmdir, and lstat that allow local attackers to redirect operations to files outside the exported rsync module. Attackers with local filesystem access can exploit the timing window between path resolution and syscall execution by swapping symlinks to apply sender-supplied permissions, ownership, timestamps, or filenames to arbitrary files outside the intended module boundary on rsync daemons configured with 'use chroot = no'.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| rsync | 26.04 LTS resolute |
Fixed 3.4.1+ds1-7ubuntu0.2
|
| 25.10 questing |
Fixed 3.4.1+ds1-5ubuntu1.2
|
|
| 24.04 LTS noble |
Fixed 3.2.7-1ubuntu1.4
|
|
| 22.04 LTS jammy |
Fixed 3.2.7-0ubuntu0.22.04.6
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
|
| 16.04 LTS xenial |
Needs evaluation
|
|
| 14.04 LTS trusty |
Needs evaluation
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
6.3 · Medium
|
| Attack vector | Local |
| Attack complexity | High |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | None |
| Vector | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N |
References
Related Ubuntu Security Notices (USN)
- USN-8283-1
- rsync vulnerabilities
- 20 May 2026