{"id":"UBUNTU-CVE-2026-10650","details":"A flaw has been found in warmcat libwebsockets up to 4.5.8. This issue affects the function lws_ssh_parse_plaintext of the file plugins/protocol_lws_ssh_base/sshd.c of the component SSH Protocol Handler. Executing a manipulation of the argument msg_len can lead to resource consumption. The attack may be launched remotely. The exploit has been published and may be used. This patch is called 3f9f0c6ecaf0e6f3f219d30632c5d1f2479d7498. A patch should be applied to remediate this issue.","modified":"2026-06-12T09:04:03.690661607Z","published":"2026-06-02T22:16:00Z","upstream":["CVE-2026-10650"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-10650"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-10650"}],"affected":[{"package":{"name":"libwebsockets","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libwebsockets?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.2-1","1.6.0-3","1.6.0-4","1.6.0-5","1.6.1-1","1.7.0-1ubuntu1","1.7.0-2","1.7.1-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libwebsockets-test-server","binary_version":"1.7.1-1"},{"binary_version":"1.7.1-1","binary_name":"libwebsockets-test-server-common"},{"binary_name":"libwebsockets7","binary_version":"1.7.1-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-10650.json"}},{"package":{"name":"libwebsockets","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libwebsockets?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.3-3","2.0.3-3build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libwebsockets-test-server","binary_version":"2.0.3-3build1"},{"binary_version":"2.0.3-3build1","binary_name":"libwebsockets-test-server-common"},{"binary_version":"2.0.3-3build1","binary_name":"libwebsockets8"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-10650.json"}},{"package":{"name":"libwebsockets","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/libwebsockets?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.3-3build1","3.2.1-3","3.2.1-3ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libwebsockets-test-server","binary_version":"3.2.1-3ubuntu0.1~esm1"},{"binary_name":"libwebsockets-test-server-common","binary_version":"3.2.1-3ubuntu0.1~esm1"},{"binary_version":"3.2.1-3ubuntu0.1~esm1","binary_name":"libwebsockets15"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-10650.json"}},{"package":{"name":"libwebsockets","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libwebsockets?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.0.20-2","4.0.20-2ubuntu1","4.0.20-2ubuntu1.1"],"ecosystem_specific":{"binaries":[{"binary_name":"libwebsockets-test-server","binary_version":"4.0.20-2ubuntu1.1"},{"binary_name":"libwebsockets-test-server-common","binary_version":"4.0.20-2ubuntu1.1"},{"binary_name":"libwebsockets16","binary_version":"4.0.20-2ubuntu1.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-10650.json"}},{"package":{"name":"libwebsockets","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/libwebsockets?arch=source&distro=esm-apps%2Fnoble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.3.2-4","4.3.3-1","4.3.3-1.1build1","4.3.3-1.1build2","4.3.3-1.1build3","4.3.3-1.1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.3.3-1.1ubuntu0.1~esm1","binary_name":"libwebsockets-evlib-ev"},{"binary_name":"libwebsockets-evlib-glib","binary_version":"4.3.3-1.1ubuntu0.1~esm1"},{"binary_version":"4.3.3-1.1ubuntu0.1~esm1","binary_name":"libwebsockets-evlib-uv"},{"binary_name":"libwebsockets-test-server","binary_version":"4.3.3-1.1ubuntu0.1~esm1"},{"binary_version":"4.3.3-1.1ubuntu0.1~esm1","binary_name":"libwebsockets-test-server-common"},{"binary_name":"libwebsockets19t64","binary_version":"4.3.3-1.1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-10650.json"}},{"package":{"name":"libwebsockets","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/libwebsockets?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.3.5-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libwebsockets-evlib-ev","binary_version":"4.3.5-1"},{"binary_name":"libwebsockets-evlib-glib","binary_version":"4.3.5-1"},{"binary_name":"libwebsockets-evlib-uv","binary_version":"4.3.5-1"},{"binary_name":"libwebsockets-test-server","binary_version":"4.3.5-1"},{"binary_version":"4.3.5-1","binary_name":"libwebsockets-test-server-common"},{"binary_name":"libwebsockets19t64","binary_version":"4.3.5-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-10650.json"}},{"package":{"name":"libwebsockets","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libwebsockets?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.3.5-1","4.3.5-3","4.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