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Echo: rsync: security update to 3.5.0+ds1-1

high Tenable Cloud Security Plugin ID 460794

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - rsync before 3.5.0 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. (CVE-2026-53783)

Solution

Update the rsync library and its related packages to version 3.5.0+ds1-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-53783

Plugin Details

Severity: High

ID: 460794

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/13/2026

Vulnerability Publication Date: 8/13/2026

Reference Information

CVE: CVE-2026-53783

IAVA: 2026-A-0906