Detections
Analytics

Echo: rsync: security update to 3.5.0

high Tenable Cloud Security Plugin ID 463775

Description

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

 - rsync before 3.5.0 contains a symlink race condition vulnerability that allows local attackers to cause
 rsync to apply arbitrary ACLs or extended attributes to unintended files by substituting a symlink at a
 predictable destination path between the file write and the subsequent acl_set_file() or lsetxattr() call.
 Attackers can exploit this timing window to redirect ACL and xattr application through a crafted symlink
 to files outside the intended destination tree, potentially granting elevated permissions and enabling
 local privilege escalation. (CVE-2026-53799)

Solution

Update the rsync library and its related packages to version 3.5.0 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-53799

Plugin Details

Severity: High

ID: 463775

Version: Revision 1.2

Type: Local

Published: 10/2/2026

Updated: 10/5/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.52

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.1

Vector: CVSS2#AV:L/AC:H/Au:S/C:C/I:C/A:N

CVSS Score Source: CVE-2026-53799

CVSS v3

Risk Factor: Medium

Base Score: 6.3

Temporal Score: 5.5

Vector: CVSS:3.0/AV:L/AC:H/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: 7.2

Threat Score: 4.1

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:L/AC:H/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-2026-53799