SB20260114140 - SUSE update for libsoup



SB20260114140 - SUSE update for libsoup

Published: January 14, 2026

Security Bulletin ID SB20260114140
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Inconsistent interpretation of HTTP requests (CVE-ID: CVE-2025-14523)

CWE-ID: CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform HTTP request smuggling attacks.

The vulnerability exists due to improper validation of HTTP requests. libsoup accepts duplicate Host: headers and implements a last-value-wins policy when soup_message_headers_get_one[_common] is used to construct the request URI, while many proxies and routers use the first Host: header for routing. A remote attacker can send a specially crafted HTTP request to the server and smuggle arbitrary HTTP headers.


Remediation

Install update from vendor's website.