HTTP Request Smuggling Affecting spice-client-win-x64 package, versions <0:8.10-6.el8_10.1


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

Social Trends
EPSS
0.55% (44th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-CENTOS8-SPICECLIENTWINX64-15146723
  • published29 Jan 2026
  • disclosed11 Dec 2025

Introduced: 11 Dec 2025

CVE-2025-14523  (opens in a new tab)
CWE-444  (opens in a new tab)

How to fix?

Upgrade Centos:8 spice-client-win-x64 to version 0:8.10-6.el8_10.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream spice-client-win-x64 package and not the spice-client-win-x64 package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1