{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "4.5.0"
              },
              {
                "last_affected": "4.5.0"
              },
              {
                "introduced": "4.5.1"
              },
              {
                "last_affected": "4.5.1"
              },
              {
                "introduced": "4.5.2"
              },
              {
                "last_affected": "4.5.2"
              },
              {
                "introduced": "4.5.3"
              },
              {
                "last_affected": "4.5.3"
              },
              {
                "introduced": "4.5.4"
              },
              {
                "last_affected": "4.5.4"
              },
              {
                "introduced": "4.5.5"
              },
              {
                "last_affected": "4.5.5"
              },
              {
                "introduced": "4.5.6"
              },
              {
                "last_affected": "4.5.6"
              },
              {
                "introduced": "4.5.7"
              },
              {
                "last_affected": "4.5.7"
              },
              {
                "introduced": "4.5.8"
              },
              {
                "last_affected": "4.5.8"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "1baa35eb9b821bc11aee5b55f7b1fa7893b97206"
            },
            {
              "fixed": "3f9f0c6ecaf0e6f3f219d30632c5d1f2479d7498"
            }
          ],
          "repo": "https://github.com/warmcat/libwebsockets",
          "type": "GIT"
        }
      ],
      "versions": [
        "4.5.0",
        "4.5.1",
        "4.5.2",
        "4.5.3",
        "4.5.4",
        "4.5.5",
        "4.5.6",
        "4.5.7",
        "4.5.8"
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulDB",
    "cwe_ids": [
      "CWE-400",
      "CWE-404"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/10xxx/CVE-2026-10650.json"
  },
  "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.",
  "id": "CVE-2026-10650",
  "modified": "2026-07-08T05:39:31.635048047Z",
  "published": "2026-06-02T21:15:10.566Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/warmcat/libwebsockets/"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/10xxx/CVE-2026-10650.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-10650"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/cve/CVE-2026-10650"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/submit/830261"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/vuln/367955"
    },
    {
      "type": "REPORT",
      "url": "https://vuldb.com/vuln/367955/cti"
    },
    {
      "type": "FIX",
      "url": "https://github.com/warmcat/libwebsockets/commit/3f9f0c6ecaf0e6f3f219d30632c5d1f2479d7498"
    },
    {
      "type": "EVIDENCE",
      "url": "https://github.com/biniamf/pocs/blob/main/libwebsockets_sshd-parse-ic-unbounded-alloc/poc_sshd_unbounded_alloc.py"
    },
    {
      "type": "EVIDENCE",
      "url": "https://github.com/biniamf/pocs/tree/main/libwebsockets_sshd-parse-ic-unbounded-alloc"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    }
  ],
  "summary": "warmcat libwebsockets SSH Protocol sshd.c lws_ssh_parse_plaintext resource consumption"
}