Detections
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Echo: rsync: security update to 3.5.0

medium Tenable Self-Hosted Container Security Plugin ID 460740

Description

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

 - rsync before 3.5.0 contains a privilege confusion vulnerability in the name-converter subprocess uid/gid
 mapping that allows local attackers to cause transferred files to be owned by root by influencing name-
 converter responses to return empty values. When the name-converter subprocess returns an empty response
 for a uid or gid lookup, rsync incorrectly interprets it as a successful resolution to uid/gid 0 (root)
 rather than a lookup failure, and if the name-converter also signals fake super-user status, rsync
 proceeds with root ownership assignments for transferred files. (CVE-2026-53798)

Solution

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

See Also

https://advisory.echohq.com/cve/CVE-2026-53798

Plugin Details

Severity: Medium

ID: 460740

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: 4.2

Percentile: 53.42

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-53798

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 2.7

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/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-2026-53798