EUVD-2026-43651

The fix for CVE-2026-0716 commit 6ff7ef0, libsoup 3.6.6 placed the integer overflow guard inside the if masked block, leaving unmasked server-to-client frames unprotected. A malicious WebSocket server can send a crafted unmasked frame with a payload length near UINT64MAX to trigger an OOB read in...

CVE-2026-12478

The fix for CVE-2026-0716 commit 6ff7ef0, libsoup 3.6.6 placed the integer overflow guard inside the if masked block, leaving unmasked server-to-client frames unprotected. A malicious WebSocket server can send a crafted unmasked frame with a payload length near UINT64MAX to trigger an OOB read in...

CVE-2026-12478

The fix for CVE-2026-0716 commit 6ff7ef0, libsoup 3.6.6 placed the integer overflow guard inside the if masked block, leaving unmasked server-to-client frames unprotected. A malicious WebSocket server can send a crafted unmasked frame with a payload length near UINT64MAX to trigger an OOB read in...

Linux Distros Unpatched Vulnerability : CVE-2026-12478

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - The fix for CVE-2026-0716 commit 6ff7ef0, libsoup 3.6.6 placed the integer overflow guard inside the if masked block, leaving unmasked server-to-client frames...

PT-2026-58723

Name of the Vulnerable Software and Affected Versions libsoup affected versions not specified Description An issue exists in the WebSocket frame parsing implementation where the library fails to validate length rules defined in RFC 6455 §5.5. This standard requires that all WebSocket control...

PT-2026-58722

Name of the Vulnerable Software and Affected Versions libsoup affected versions not specified Description A flaw exists in the WebSocket implementation when utilizing the permessage-deflate extension. The decompression loop inflate processes data in chunks but does not enforce an upper boundary...

Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS : libsoup vulnerabilities (USN-8523-1)

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8523-1 advisory. Eric Su and Samuel Dainard discovered that libsoup incorrectly handled content with zero-leng...

USN-8523-1: libsoup vulnerabilities

Eric Su and Samuel Dainard discovered that libsoup incorrectly handled content with zero-length resources. An attacker could possibly use this issue to trigger a buffer over-read, resulting in information disclosure or a denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04...

SUSE-SU-2026:2702-1 Security update for libsoup

This update for libsoup fixes the following issue - CVE-2026-1801: HTTP Request Smuggling in soupfilterinputstreamreadline bsc1257649...

Oracle Linux 7 : libsoup (ELSA-2026-24722)

The remote Oracle Linux 7 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-24722 advisory. - Backport fix for CVE-2026-5119 Orabug: 39527088 - Fixes CVE-2026-0719 CVE-2026-1761 Orabug: 38958074 - Fix CVE-2025-14523 Orabug: 38873507 - Backport patch f...

libsoup security update

2.62.2-2.0.13 - Backport fix for CVE-2026-5119 Orabug: 39527088 2.62.2-2.0.11 - Fixes CVE-2026-0719 CVE-2026-1761 Orabug: 38958074 2.62.2-2.0.9 - Fix CVE-2025-14523 Orabug: 38873507 2.62.2-2.0.7 - Backport patch for CVE-2025-4945 and CVE-2025-11021 Orabug: 38664275 2.62.2-2.0.5 - Fixes...

Astra Linux – Vulnerability in libsoup3

A flaw was discovered in libsoup’s SoupServer. A remote attacker could exploit a use-after-free vulnerability, where the soupserverdisconnect function releases connection objects prematurely, even if a TLS handshake is still pending. If the handshake completes after the connection object has been...

Astra Linux – Vulnerability in libsoup3

There is a vulnerability related to request smuggling in LibSoup’s HTTP/1 header parsing logic. The soupmessageheaders.AppendCommon function in libsoup/soup-message-headers.c appends each header value unconditionally, without checking for duplicates or conflicting Content-Length fields. This allo...

Astra Linux – Vulnerability in libsoup3

A flaw was discovered in the asynchronous message queue handling of the libsoup library, which is widely used by GNOME and WebKit-based applications for managing HTTP/2 communications. When network operations are aborted at specific timing intervals, an internal message queue item may be freed...

Astra Linux – Vulnerability in libsoup3

A flaw was discovered 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...

OESA-2026-2719 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 request smuggling vulnerability exists in libsoup's HTTP/1 header parsing...

OESA-2026-2718 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 request smuggling vulnerability exists in libsoup's HTTP/1 header parsing...

OESA-2026-2717 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. The SoupWebsocketConnection may accept a large...

Oracle Linux 9 : libsoup (ELSA-2026-19356)

The remote Oracle Linux 9 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-19356 advisory. - Backport patch for CVE-2026-5119 - Backport patch for CVE-2026-1761 - Backport patch for CVE-2026-0719 - Backport patch for CVE-2025-14523 Tenable has...

libsoup security update

2.72.0-16.1 - Backport patch for CVE-2026-5119 2.72.0-16 - Backport patch for CVE-2026-1761 2.72.0-15 - Backport patch for CVE-2026-0719 - Fix NTLM authentication test failures in FIPS mode 2.72.0-14 - Backport patch for CVE-2025-14523 2.72.0-13 - Backport patch for CVE-2025-4945 and CVE-2025-110...