libsoup: Signed to Unsigned Conversion Error Leading to Stack-Based Buffer Overflow in libsoup NTLM Authentication

A flaw was identified in the NTLM authentication handling of the libsoup HTTP library, used by GNOME and other applications for network communication. When processing extremely long passwords, an internal size calculation can overflow due to improper use of signed integers. This results in...

Important: Red Hat Security Advisory: libsoup security update

An update for libsoup is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

libsoup: Stack-Based Buffer Overflow in libsoup Multipart Response Parsingmultipart HTTP response

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...

SUSE CVE-2026-1801

A flaw was found in libsoup, an HTTP client/server library. This HTTP Request Smuggling vulnerability arises from non-RFC-compliant parsing in the soupfilterinputstreamreadline logic, where libsoup accepts malformed chunk headers, such as lone line feed LF characters instead of the required...

Important: libsoup

Issue Overview: A flaw in libsoup's HTTP header handling allows multiple Host: headers in a request and returns the last occurrence for server-side processing. Common front proxies often honor the first Host: header, so this mismatch can cause vhost confusion where a proxy routes a request to one...

RHEL 8 : libsoup (RHSA-2026:1948)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:1948 advisory. The libsoup packages provide an HTTP client and server library for GNOME. Security Fixes: libsoup: Signed to Unsigned Conversion Error Leadi...

RHEL 9 : libsoup (RHSA-2026:2049)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:2049 advisory. The libsoup packages provide an HTTP client and server library for GNOME. Security Fixes: libsoup: Signed to Unsigned Conversion Error Leadi...

Amazon Linux 2 : libsoup, --advisory ALAS2-2026-3142 (ALAS-2026-3142)

The version of libsoup installed on the remote host is prior to 2.56.0-6. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3142 advisory. A flaw in libsoup's HTTP header handling allows multiple Host: headers in a request and returns the last occurrence for server-sid...

Amazon Linux 2 : libsoup, --advisory ALAS2-2026-3141 (ALAS-2026-3141)

The version of libsoup installed on the remote host is prior to 2.56.0-6. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3141 advisory. A flaw was identified in the NTLM authentication handling of the libsoup HTTP library, used by GNOME and other applications for...

RHEL 10 : libsoup3 (RHSA-2026:2006)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:2006 advisory. Libsoup is an HTTP library implementation in C. It was originally part of a SOAP Simple Object Access Protocol implementation called Soup,...

Important: libsoup

Issue Overview: A flaw was identified in the NTLM authentication handling of the libsoup HTTP library, used by GNOME and other applications for network communication. When processing extremely long passwords, an internal size calculation can overflow due to improper use of signed integers. This...

Amazon Linux 2023 : libsoup, libsoup-devel (ALAS2023-2026-1391)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1391 advisory. A flaw in libsoup's HTTP header handling allows multiple Host: headers in a request and returns the last occurrence for server-side processing. Common front proxies often honor the first Host: header, ...

Important: libsoup

Issue Overview: A flaw was identified in the NTLM authentication handling of the libsoup HTTP library, used by GNOME and other applications for network communication. When processing extremely long passwords, an internal size calculation can overflow due to improper use of signed integers. This...

RHEL 9 : libsoup (RHSA-2026:2005)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:2005 advisory. The libsoup packages provide an HTTP client and server library for GNOME. Security Fixes: libsoup: Signed to Unsigned Conversion Error Leadi...

Amazon Linux 2023 : libsoup, libsoup-devel (ALAS2023-2026-1392)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1392 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 processing extremely long passwords, an...

Important: libsoup

Issue Overview: A flaw in libsoup's HTTP header handling allows multiple Host: headers in a request and returns the last occurrence for server-side processing. Common front proxies often honor the first Host: header, so this mismatch can cause vhost confusion where a proxy routes a request to one...

ALSA-2026:2182 Important: libsoup3 security update

Libsoup is an HTTP library implementation in C. It was originally part of a SOAP Simple Object Access Protocol implementation called Soup, but the SOAP and non-SOAP parts have now been split into separate packages. libsoup uses the Glib main loop and is designed to work well with GTK applications...

RHEL 9 : libsoup (RHSA-2026:2007)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:2007 advisory. The libsoup packages provide an HTTP client and server library for GNOME. Security Fixes: libsoup: Signed to Unsigned Conversion Error Leadi...

RHEL 10 : libsoup3 (RHSA-2026:2182)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:2182 advisory. Libsoup is an HTTP library implementation in C. It was originally part of a SOAP Simple Object Access Protocol implementation called Soup,...

RHEL 9 : libsoup (RHSA-2026:2008)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:2008 advisory. The libsoup packages provide an HTTP client and server library for GNOME. Security Fixes: libsoup: Signed to Unsigned Conversion Error Leadi...