Detections
Analytics
Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: rsync (UTSA-2026-130113)
high Nessus Plugin ID 365818
Synopsis
The Unity Linux host is missing one or more security updates.Description
The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-130113 advisory.rsync before3.5.0 contains a time-of-check to time-of-use (TOCTOU) race condition vulnerability in the rrsync restricted shell wrapper that allows authenticated clients to escape enforced directory restrictions by substituting a symlink for a path component after validation but before transfer processing. Attackers can additionally leverage unrestricted flags such as --copy-unsafe-links, -D, and
--log-file through rrsync to read or write files outside the permitted directory subtree.
Tenable has extracted the preceding description block directly from the Unity Linux security advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Update the affected rsync package.See Also
https://access.redhat.com/security/cve/CVE-2026-53783
https://github.com/RsyncProject/rsync/releases/tag/v3.5.0
http://www.nessus.org/u?115d4dbc
Plugin Details
Severity: High
ID: 365818
File Name: unity_linux_UTSA-2026-130113.nasl
Version: 1.1
Type: Local
Published: 10/14/2026
Updated: 10/14/2026
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.3
Percentile: 53.51
CVSS v2
Risk Factor: High
Base Score: 8.5
Temporal Score: 6.3
Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:N
CVSS Score Source: CVE-2026-53783
CVSS v3
Risk Factor: High
Base Score: 8.1
Temporal Score: 7.1
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS v4
Risk Factor: High
Base Score: 8.6
Threat Score: 6.2
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Vulnerability Information
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/UOS-Server/release, Host/UOS-Server/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 10/15/2026
Vulnerability Publication Date: 8/13/2026
Reference Information
CVE: CVE-2026-53783