Heap buffer overflow in wazuh-authd

{
  "id": "82914ef92941b9f26d8b56ea2c42b34b4ffb0c51ab4c21850aac3e605df1c667",
  "url": "https://osv.dev/vulnerability/CVE-2026-32984",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Heap buffer overflow in wazuh-authd",
    "summary": "Wazuh authd contains a heap-buffer overflow vulnerability that allows attackers to cause memory corruption and malformed heap data by sending specially crafted input. Attackers can exploit this vulnerability to trigger a denial of service condition, resulting in low impact on the availability of the authentication daemon.",
    "evidence": "osv:CVE-2026-32984",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-32984",
      "aliases": [
        "CVE-2023-7340",
        "CVE-2026-32984",
        "GHSA-grjq-p5fg-m24r"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/wazuh/wazuh",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "458d330c3e2dfb186f85754292f6a5a7ac7ddbd2"
                },
                {
                  "introduced": "89530f11c9e592cd2e551432209b0080f08ff8e5"
                },
                {
                  "last_affected": "89530f11c9e592cd2e551432209b0080f08ff8e5"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:wazuh:wazuh:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "3.5.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:wazuh:wazuh:4.3.10:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.3.10"
                      },
                      {
                        "last_affected": "4.3.10"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.3.10",
            "v4.3.10",
            "v3.5.0",
            "v3.2.0",
            "v3.1.0",
            "v2.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-32984.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.316367325Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32984.json",
        "https://github.com/advisories/GHSA-grjq-p5fg-m24r",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-32984",
        "https://www.vulncheck.com/advisories/heap-buffer-overflow-in-wazuh-authd"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-125"
        ],
        "cna_assigner": "VulnCheck",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "3.5.0"
                  },
                  {
                    "last_affected": "3.5.0"
                  },
                  {
                    "introduced": "4.3.10"
                  },
                  {
                    "last_affected": "4.3.10"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandaloneSingleVersion"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32984.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-7340",
        "evidence": "/aliases"
      },
      {
        "value": "CVE-2026-32984",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 497309,
  "published_at": "2026-03-27T15:02:47.575+00:00"
}