Libsoup: libsoup: http request smuggling via duplicate content-length headers

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Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: libsoup (UTSA-2026-015469)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-015469 advisory. A flaw was identified in the NTLM authentication handling of the libsoup HTTP library, used by GNOME and other applications for network communication. When processin...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: libsoup (UTSA-2026-015475)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-015475 advisory. A flaw was found in libsoups WebSocket frame processing when handling incoming messages. If a non- default configuration is used where the maximum incoming payload...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: libsoup (UTSA-2026-014646)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-014646 advisory. A flaw in libsoups HTTP header handling allows multiple Host: headers in a request and returns the last occurrence for server-side processing. Common front proxies...

OESA-2026-2028 libsoup security update

libsoup is an HTTP client/server library for GNOME. It uses GObjects and the glib main loop, to integrate well with GNOME applications, and also has a synchronous API, for use in threaded applications. Security Fixes: A flaw was found in libsoup. When establishing HTTPS tunnels through a configur...

OESA-2026-2027 libsoup security update

libsoup is an HTTP client/server library for GNOME. It uses GObjects and the glib main loop, to integrate well with GNOME applications, and also has a synchronous API, for use in threaded applications. Security Fixes: A flaw was found in libsoup. When establishing HTTPS tunnels through a configur...

OESA-2026-2026 libsoup security update

libsoup is an HTTP client/server library for GNOME. It uses GObjects and the glib main loop, to integrate well with GNOME applications, and also has a synchronous API, for use in threaded applications. Security Fixes: A flaw was found in libsoup. When establishing HTTPS tunnels through a configur...

OESA-2026-2030 libsoup security update

libsoup is an HTTP client/server library for GNOME. It uses GObjects and the glib main loop, to integrate well with GNOME applications, and also has a synchronous API, for use in threaded applications. Security Fixes: A flaw was found in libsoup. When establishing HTTPS tunnels through a configur...

OESA-2026-2029 libsoup security update

libsoup is an HTTP client/server library for GNOME. It uses GObjects and the glib main loop, to integrate well with GNOME applications, and also has a synchronous API, for use in threaded applications. Security Fixes: A flaw was found in libsoup. When establishing HTTPS tunnels through a configur...

CLSA-2026-1777035141 libsoup: Fix of CVE-2026-5119

CVE-2026-5119: do not send cookies to a HTTP proxy for a HTTPS request...

CLSA-2026-1777036238 libsoup: Fix of CVE-2026-5119

CVE-2026-5119: do not send cookies to a HTTP proxy for a HTTPS request...

CLSA-2026-1777035524 libsoup: Fix of CVE-2026-5119

CVE-2026-5119: do not send cookies to a HTTP proxy for a HTTPS request...

EUVD-2026-25306

A request smuggling vulnerability exists in libsoup's HTTP/1 header parsing logic. The soupmessageheadersappendcommon function in libsoup/soup-message-headers.c unconditionally appends each header value without validating for duplicate or conflicting Content-Length fields. This allows an attacker...

CVE-2026-2708

A request smuggling vulnerability exists in libsoup's HTTP/1 header parsing logic. The soupmessageheadersappendcommon function in libsoup/soup-message-headers.c unconditionally appends each header value without validating for duplicate or conflicting Content-Length fields. This allows an attacker...

UBUNTU-CVE-2026-2708

A request smuggling vulnerability exists in libsoup's HTTP/1 header parsing logic. The soupmessageheadersappendcommon function in libsoup/soup-message-headers.c unconditionally appends each header value without validating for duplicate or conflicting Content-Length fields. This allows an attacker...

CVE-2026-2708

A request smuggling vulnerability exists in libsoup's HTTP/1 header parsing logic. The soupmessageheadersappendcommon function in libsoup/soup-message-headers.c unconditionally appends each header value without validating for duplicate or conflicting Content-Length fields. This allows an attacker...

CVE-2026-2708 Libsoup: libsoup: http request smuggling via duplicate content-length headers

A request smuggling vulnerability exists in libsoup's HTTP/1 header parsing logic. The soupmessageheadersappendcommon function in libsoup/soup-message-headers.c unconditionally appends each header value without validating for duplicate or conflicting Content-Length fields. This allows an attacker...

CVE-2026-2708 Libsoup: libsoup: http request smuggling via duplicate content-length headers

A request smuggling vulnerability exists in libsoup's HTTP/1 header parsing logic. The soupmessageheadersappendcommon function in libsoup/soup-message-headers.c unconditionally appends each header value without validating for duplicate or conflicting Content-Length fields. This allows an attacker...

CVE-2026-2708

A request smuggling vulnerability exists in libsoup's HTTP/1 header parsing logic. The soupmessageheadersappendcommon function in libsoup/soup-message-headers.c unconditionally appends each header value without validating for duplicate or conflicting Content-Length fields. This allows an attacker...

CVE-2026-2708

CVE-2026-2708 affects the Libsoup HTTP/1 parser. The soup_message_headers_append_common() function unconditionally appends header values without validating for duplicate or conflicting Content-Length fields, enabling HTTP request smuggling via multiple Content-Length headers with differing values...