SB2026021861 - SUSE update for libsoup2
Published: February 18, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
1) NULL pointer dereference (CVE-ID: CVE-2025-4476)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error. when handling 401 (Unauthorized) HTTP responses. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
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-2026-1761)
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 within the soup_filter_input_stream_read_until() function when parsing multipart/form-data response. A remote attacker can send specially crafted data to the application, trigger a 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.