183 matches found
Libwebsockets security vulnerabilities
Libwebsockets is a standardized network library open-sourced by the lws-team. Versions of Libwebsockets 4.5.8 and earlier contain security vulnerabilities. These vulnerabilities stem from the lwssshParseplaintext function in the SSH Protocol Handler component’s plugins/protocollwssshbase/sshd.c...
PT-2026-45865
Name of the Vulnerable Software and Affected Versions warmcat libwebsockets versions prior to 4.5.9 Description A flaw in the SSH Protocol Handler component allows for remote resource consumption. The issue exists within the lws ssh parse plaintext function located in the plugins/protocol lws ssh...
CVE-2026-10650: Uncontrolled Resource Consumption
A flaw has been found in warmcat libwebsockets up to 4.5.8. This issue affects the function lwssshparseplaintext of the file plugins/protocollwssshbase/sshd.c of the component SSH Protocol Handler. Executing a manipulation of the argument msglen can lead to resource consumption. The attack may be...
Huawei EulerOS: Security Advisory for libwebsockets (EulerOS-SA-2026-1613)
The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...
Huawei EulerOS: Security Advisory for libwebsockets (EulerOS-SA-2026-1585)
The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...
Huawei EulerOS: Security Advisory for libwebsockets (EulerOS-SA-2026-1404)
The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...
Huawei EulerOS: Security Advisory for libwebsockets (EulerOS-SA-2026-1373)
The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...
EulerOS 2.0 SP11 : libwebsockets (EulerOS-SA-2026-1585)
According to the versions of the libwebsockets package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Use After Free vulnerability exists in the WebSocket server implementation in lwshandshakeserver in warmcat libwebsockets. In specific...
EulerOS 2.0 SP12 : libwebsockets (EulerOS-SA-2026-1404)
According to the versions of the libwebsockets package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Stack-based Buffer Overflow in lwsadnsparselabel in warmcat libwebsockets allows, when the LWSWITHSYSASYNCDNS flag is enabled during...
EulerOS 2.0 SP12 : libwebsockets (EulerOS-SA-2026-1373)
According to the versions of the libwebsockets package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Stack-based Buffer Overflow in lwsadnsparselabel in warmcat libwebsockets allows, when the LWSWITHSYSASYNCDNS flag is enabled during...
Huawei EulerOS: Security Advisory for libwebsockets (EulerOS-SA-2026-1287)
The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...
Huawei EulerOS: Security Advisory for libwebsockets (EulerOS-SA-2026-1251)
The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...
EulerOS 2.0 SP13 : libwebsockets (EulerOS-SA-2026-1251)
According to the versions of the libwebsockets package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Stack-based Buffer Overflow in lwsadnsparselabel in warmcat libwebsockets allows, when the LWSWITHSYSASYNCDNS flag is enabled during...
EulerOS 2.0 SP13 : libwebsockets (EulerOS-SA-2026-1287)
According to the versions of the libwebsockets package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Stack-based Buffer Overflow in lwsadnsparselabel in warmcat libwebsockets allows, when the LWSWITHSYSASYNCDNS flag is enabled during...
Ubuntu: Security Advisory (USN-8024-1)
The remote host is missing an update for the SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...
Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS : Libwebsockets vulnerabilities (USN-8024-1)
The remote Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8024-1 advisory. Raffaele Bova discovered that Libwebsockets incorrectly handled memory when the upgrade header is not valid in the WebSocket...
USN-8024-1: Libwebsockets vulnerabilities
Raffaele Bova discovered that Libwebsockets incorrectly handled memory when the upgrade header is not valid in the WebSocket server. An attacker could possibly use this issue to cause a denial of service. CVE-2025-11677 Raffaele Bova discovered that Libwebsockets did not properly check the size o...
USN-8024-1 libwebsockets vulnerabilities
Raffaele Bova discovered that Libwebsockets incorrectly handled memory when the upgrade header is not valid in the WebSocket server. An attacker could possibly use this issue to cause a denial of service. CVE-2025-11677 Raffaele Bova discovered that Libwebsockets did not properly check the size o...
EulerOS 2.0 SP12 : libwebsockets (EulerOS-SA-2026-1074)
According to the versions of the libwebsockets package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Use After Free in WebSocket server implementation in lwshandshakeserver in warmcat libwebsockets may allow an attacker, in specific...
EulerOS 2.0 SP12 : libwebsockets (EulerOS-SA-2026-1094)
According to the versions of the libwebsockets package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Use After Free in WebSocket server implementation in lwshandshakeserver in warmcat libwebsockets may allow an attacker, in specific...