SB2026021362 - SUSE update for libsoup
Published: February 13, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
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.
2) Buffer access with incorrect length value (CVE-ID: CVE-2026-0716)
CWE-ID: CWE-805 - Buffer Access with Incorrect Length Value
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to a boundary error in process_frame() function when handling WebSocket frames if a non-default configuration is used where the maximum incoming payload size is unset. A remote attacker can send specially crafted data to the application and execute arbitrary code on the system.
3) Stack-based buffer overflow (CVE-ID: CVE-2026-0719)
CWE-ID: CWE-121 - Stack-based buffer overflow
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Red
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in the md4sum() function of libsoup’s NTLM authentication module (SoupAuthNTLM) when handling NTLM authentication requests. A remote attacker can send specially crafted input to the application, trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.