CVE-2026-43619

Publication date 20 May 2026

Last updated 2 June 2026

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

6.3 · Medium

Score breakdown

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
Fixed 3.1.3-8ubuntu0.9+esm1
18.04 LTS bionic
Fixed 3.1.2-2.1ubuntu1.6+esm3
16.04 LTS xenial
Fixed 3.1.1-3ubuntu1.3+esm5
14.04 LTS trusty
Fixed 3.1.0-2ubuntu0.4+esm3

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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)

Other references

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