Detections
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Echo: rsync: security update to 3.4.1+ds1-5+e2

low Tenable Cloud Security Plugin ID 462296

Description

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

 - Rsync versions before 3.4.3 contain an off-by-one out-of-bounds stack write vulnerability in the
 establish_proxy_connection() function in socket.c that allows network attackers to corrupt stack memory by
 sending a malformed HTTP proxy response. Attackers can exploit this by positioning themselves between the
 client and proxy or controlling the proxy server to send a response line of 1023 or more bytes without a
 newline terminator, causing a null byte to be written to an out-of-bounds stack address when the
 RSYNC_PROXY environment variable is set. (CVE-2026-45232)

Solution

Update the rsync library and its related packages to version 3.4.1+ds1-5+e2 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-45232

Plugin Details

Severity: Low

ID: 462296

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

CVSS v2

Risk Factor: Low

Base Score: 2.6

Temporal Score: 1.9

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

CVSS Score Source: CVE-2026-45232

CVSS v3

Risk Factor: Low

Base Score: 3.7

Temporal Score: 3.2

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

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

CVSS v4

Risk Factor: Low

Base Score: 2.1

Threat Score: 0.5

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/20/2026

Vulnerability Publication Date: 5/20/2026

Reference Information

CVE: CVE-2026-45232

IAVA: 2026-A-0502