Security update for libsoup SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2026:20649-1 Final 1 1 2026-03-03T15:01:12Z current 2026-03-03T15:01:12Z 2026-03-03T15:01:12Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for libsoup This update for libsoup fixes the following issues: - CVE-2025-32049: denial of service attack to websocket server (bsc#1240751). - CVE-2026-1467: lack of input sanitization can lead to unintended or unauthorized HTTP requests (bsc#1257398). - CVE-2026-1536: HTTP header injection or response splitting via CRLF injection in the Content-Disposition header (bsc#1257440). - CVE-2026-1539: proxy authentication credentials leaked via the Proxy-Authorization header when handling HTTP redirects (bsc#1257441). - CVE-2026-1760: improper handling of HTTP requests combining certain headers by SoupServer can lead to HTTP request smuggling and potential DoS (bsc#1257597). - CVE-2026-1761: incorrect length calculation when parsing of multipart HTTP responses can lead to a stack-based buffer overflow (bsc#1257598). - CVE-2026-2369: buffer overread due to integer underflow when handling zero-length resources (bsc#1258120). - CVE-2026-2443: out-of-bounds read when processing specially crafted HTTP Range headers can lead to heap information disclosure to remote attackers (bsc#1258170). - CVE-2026-2708: HTTP request smuggling via duplicate Content-Length headers (bsc#1258508). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-SLE-Micro-6.1-420 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2026/suse-su-202620649-1/ Link for SUSE-SU-2026:20649-1 https://lists.suse.com/pipermail/sle-updates/2026-March/044819.html E-Mail link for SUSE-SU-2026:20649-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1240751 SUSE Bug 1240751 https://bugzilla.suse.com/1257398 SUSE Bug 1257398 https://bugzilla.suse.com/1257440 SUSE Bug 1257440 https://bugzilla.suse.com/1257441 SUSE Bug 1257441 https://bugzilla.suse.com/1257597 SUSE Bug 1257597 https://bugzilla.suse.com/1257598 SUSE Bug 1257598 https://bugzilla.suse.com/1258120 SUSE Bug 1258120 https://bugzilla.suse.com/1258170 SUSE Bug 1258170 https://bugzilla.suse.com/1258508 SUSE Bug 1258508 https://www.suse.com/security/cve/CVE-2025-32049/ SUSE CVE CVE-2025-32049 page https://www.suse.com/security/cve/CVE-2026-1467/ SUSE CVE CVE-2026-1467 page https://www.suse.com/security/cve/CVE-2026-1536/ SUSE CVE CVE-2026-1536 page https://www.suse.com/security/cve/CVE-2026-1539/ SUSE CVE CVE-2026-1539 page https://www.suse.com/security/cve/CVE-2026-1760/ SUSE CVE CVE-2026-1760 page https://www.suse.com/security/cve/CVE-2026-1761/ SUSE CVE CVE-2026-1761 page https://www.suse.com/security/cve/CVE-2026-2369/ SUSE CVE CVE-2026-2369 page https://www.suse.com/security/cve/CVE-2026-2443/ SUSE CVE CVE-2026-2443 page https://www.suse.com/security/cve/CVE-2026-2708/ SUSE CVE CVE-2026-2708 page SUSE Linux Micro 6.1 libsoup-3_0-0-3.4.4-slfo.1.1_7.1 libsoup-3_0-0-3.4.4-slfo.1.1_7.1 as a component of SUSE Linux Micro 6.1 A flaw was found in libsoup. The SoupWebsocketConnection may accept a large WebSocket message, which may cause libsoup to allocate memory and lead to a denial of service (DoS). CVE-2025-32049 SUSE Linux Micro 6.1:libsoup-3_0-0-3.4.4-slfo.1.1_7.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2026/suse-su-202620649-1/ https://www.suse.com/security/cve/CVE-2025-32049.html CVE-2025-32049 https://bugzilla.suse.com/1240751 SUSE Bug 1240751 https://bugzilla.suse.com/1250562 SUSE Bug 1250562 A flaw was found in libsoup, an HTTP client library. This vulnerability, known as CRLF (Carriage Return Line Feed) Injection, occurs when an HTTP proxy is configured and the library improperly handles URL-decoded input used to create the Host header. A remote attacker can exploit this by providing a specially crafted URL containing CRLF sequences, allowing them to inject additional HTTP headers or complete HTTP request bodies. This can lead to unintended or unauthorized HTTP requests being forwarded by the proxy, potentially impacting downstream services. CVE-2026-1467 SUSE Linux Micro 6.1:libsoup-3_0-0-3.4.4-slfo.1.1_7.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2026/suse-su-202620649-1/ https://www.suse.com/security/cve/CVE-2026-1467.html CVE-2026-1467 https://bugzilla.suse.com/1257398 SUSE Bug 1257398 A flaw was found in libsoup. An attacker who can control the input for the Content-Disposition header can inject CRLF (Carriage Return Line Feed) sequences into the header value. These sequences are then interpreted verbatim when the HTTP request or response is constructed, allowing arbitrary HTTP headers to be injected. This vulnerability can lead to HTTP header injection or HTTP response splitting without requiring authentication or user interaction. CVE-2026-1536 SUSE Linux Micro 6.1:libsoup-3_0-0-3.4.4-slfo.1.1_7.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2026/suse-su-202620649-1/ https://www.suse.com/security/cve/CVE-2026-1536.html CVE-2026-1536 https://bugzilla.suse.com/1257440 SUSE Bug 1257440 A flaw was found in the libsoup HTTP library that can cause proxy authentication credentials to be sent to unintended destinations. When handling HTTP redirects, libsoup removes the Authorization header but does not remove the Proxy-Authorization header if the request is redirected to a different host. As a result, sensitive proxy credentials may be leaked to third-party servers. Applications using libsoup for HTTP communication may unintentionally expose proxy authentication data. CVE-2026-1539 SUSE Linux Micro 6.1:libsoup-3_0-0-3.4.4-slfo.1.1_7.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2026/suse-su-202620649-1/ https://www.suse.com/security/cve/CVE-2026-1539.html CVE-2026-1539 https://bugzilla.suse.com/1257441 SUSE Bug 1257441 A flaw was found in SoupServer. This HTTP request smuggling vulnerability occurs because SoupServer improperly handles requests that combine Transfer-Encoding: chunked and Connection: keep-alive headers. A remote, unauthenticated client can exploit this by sending specially crafted requests, causing SoupServer to fail to close the connection as required by RFC 9112. This allows the attacker to smuggle additional requests over the persistent connection, leading to unintended request processing and potential denial-of-service (DoS) conditions. CVE-2026-1760 SUSE Linux Micro 6.1:libsoup-3_0-0-3.4.4-slfo.1.1_7.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2026/suse-su-202620649-1/ https://www.suse.com/security/cve/CVE-2026-1760.html CVE-2026-1760 https://bugzilla.suse.com/1257597 SUSE Bug 1257597 A flaw was found in libsoup. This stack-based buffer overflow vulnerability occurs during the parsing of multipart HTTP responses due to an incorrect length calculation. A remote attacker can exploit this by sending a specially crafted multipart HTTP response, which can lead to memory corruption. This issue may result in application crashes or arbitrary code execution in applications that process untrusted server responses, and it does not require authentication or user interaction. CVE-2026-1761 SUSE Linux Micro 6.1:libsoup-3_0-0-3.4.4-slfo.1.1_7.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2026/suse-su-202620649-1/ https://www.suse.com/security/cve/CVE-2026-1761.html CVE-2026-1761 https://bugzilla.suse.com/1257598 SUSE Bug 1257598 unknown CVE-2026-2369 SUSE Linux Micro 6.1:libsoup-3_0-0-3.4.4-slfo.1.1_7.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2026/suse-su-202620649-1/ https://www.suse.com/security/cve/CVE-2026-2369.html CVE-2026-2369 https://bugzilla.suse.com/1258120 SUSE Bug 1258120 A flaw was identified in libsoup, a widely used HTTP library in GNOME-based systems. When processing specially crafted HTTP Range headers, the library may improperly validate requested byte ranges. In certain build configurations, this could allow a remote attacker to access portions of server memory beyond the intended response. Exploitation requires a vulnerable configuration and access to a server using the embedded SoupServer component. CVE-2026-2443 SUSE Linux Micro 6.1:libsoup-3_0-0-3.4.4-slfo.1.1_7.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2026/suse-su-202620649-1/ https://www.suse.com/security/cve/CVE-2026-2443.html CVE-2026-2443 https://bugzilla.suse.com/1258170 SUSE Bug 1258170 unknown CVE-2026-2708 SUSE Linux Micro 6.1:libsoup-3_0-0-3.4.4-slfo.1.1_7.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2026/suse-su-202620649-1/ https://www.suse.com/security/cve/CVE-2026-2708.html CVE-2026-2708 https://bugzilla.suse.com/1258508 SUSE Bug 1258508