Detections
Analytics

Echo: libsoup3: security update to 3.6.5-7

high Tenable Self-Hosted Container Security Plugin ID 463090

Description

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

 - A flaw in libsoup’s HTTP header handling allows multiple Host: headers in a request and returns the last
 occurrence for server-side processing. Common front proxies often honor the first Host: header, so this
 mismatch can cause vhost confusion where a proxy routes a request to one backend but the backend
 interprets it as destined for another host. This discrepancy enables request-smuggling style attacks,
 cache poisoning, or bypassing host-based access controls when an attacker supplies duplicate Host headers.
 (CVE-2025-14523)

Solution

Update the libsoup3 library and its related packages to version 3.6.5-7 or later.

See Also

https://advisory.echohq.com/cve/CVE-2025-14523

Plugin Details

Severity: High

ID: 463090

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 51.9

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

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

CVSS Score Source: CVE-2025-14523

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.1

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

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

CVSS v4

Risk Factor: High

Base Score: 8.3

Threat Score: 4.8

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/1/2026

Vulnerability Publication Date: 12/11/2025

Reference Information

CVE: CVE-2025-14523

IAVA: 2026-A-0139-S