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...

RLSA-2026:1509 Important: spice-client-win security update

Spice client MSI installers for Windows clients Security Fixes: libsoup: libsoup: Duplicate Host Header Handling Causes Host-Parsing Discrepancy First- vs Last-Value Wins CVE-2025-14523 For more details about the security issues, including the impact, a CVSS score, acknowledgments, and other...

libsoup: libsoup: Duplicate Host Header Handling Causes Host-Parsing Discrepancy (First- vs Last-Value Wins)

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 backend but the...

libsoup: libsoup: Duplicate Host Header Handling Causes Host-Parsing Discrepancy (First- vs Last-Value Wins)

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 backend but the...

RHEL 8 : spice-client-win (RHSA-2026:1569)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:1569 advisory. Spice client MSI installers for Windows clients Security Fixes: libsoup: libsoup: Duplicate Host Header Handling Causes Host-Parsing Discrepancy Firs...

CLSA-2026-1769598900 libsoup: Fix of CVE-2025-14523

CVE-2025-14523: reject duplicate Host headers to prevent request smuggling, cache poisoning, and host-based access control bypass attacks...

TencentOS Server 2: libsoup (TSSA-2026:0040)

The version of Tencent Linux installed on the remote TencentOS Server 2 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2026:0040 advisory. Package updates are available for TencentOS Server 2 that fix the following vulnerabilities:...

Security update for libsoup2

This update for libsoup2 fixes the following issues: CVE-2025-14523: Reject duplicated Host in headers and followed upstream update bsc1254876. CVE-2026-0719: Fixed overflow for password md4sum bsc1256399 Patch Instructions: To install this SUSE update use the SUSE recommended installation method...

SUSE-SU-2026:0211-1 Security update for libsoup

This update for libsoup fixes the following issues: - CVE-2025-14523: Reject duplicated Host in headers and followed upstream update bsc1254876. - CVE-2026-0716: Fixed out-of-bounds read for websocket bsc1256418 - CVE-2026-0719: Fixed overflow for password md4sum bsc1256399...

RHEL 7 : libsoup (RHSA-2026:0925)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:0925 advisory. The libsoup packages provide an HTTP client and server library for GNOME. Security Fixes: libsoup: libsoup: Duplicate Host Header Handling Causes...

libsoup: libsoup: Duplicate Host Header Handling Causes Host-Parsing Discrepancy (First- vs Last-Value Wins)

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 backend but the...

Important: Red Hat Security Advisory: libsoup security update

An update for libsoup is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support. 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 available for...

libsoup: libsoup: Duplicate Host Header Handling Causes Host-Parsing Discrepancy (First- vs Last-Value Wins)

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 backend but the...

libsoup: libsoup: Duplicate Host Header Handling Causes Host-Parsing Discrepancy (First- vs Last-Value Wins)

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 backend but the...

libsoup: libsoup: Duplicate Host Header Handling Causes Host-Parsing Discrepancy (First- vs Last-Value Wins)

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 backend but the...

RHEL 9 : libsoup (RHSA-2026:0906)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:0906 advisory. The libsoup packages provide an HTTP client and server library for GNOME. Security Fixes: libsoup: libsoup: Duplicate Host Header Handling Causes...

RHEL 9 : libsoup (RHSA-2026:0908)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:0908 advisory. The libsoup packages provide an HTTP client and server library for GNOME. Security Fixes: libsoup: libsoup: Duplicate Host Header Handling Causes...

RHEL 8 : libsoup (RHSA-2026:0909)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:0909 advisory. The libsoup packages provide an HTTP client and server library for GNOME. Security Fixes: libsoup: libsoup: Duplicate Host Header Handling Causes...

RHEL 8 : libsoup (RHSA-2026:0905)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:0905 advisory. The libsoup packages provide an HTTP client and server library for GNOME. Security Fixes: libsoup: libsoup: Duplicate Host Header Handling Causes...

RHEL 8 : libsoup (RHSA-2026:0867)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:0867 advisory. The libsoup packages provide an HTTP client and server library for GNOME. Security Fixes: libsoup: libsoup: Duplicate Host Header Handling Causes...