FKIE_CVE-2026-61811

Vulnerability from fkie_nvd - Published: 2026-09-24 18:17 - Updated: 2026-09-24 19:17
Severity
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
Wazuh is an open-source security platform providing unified XDR and SIEM protection for endpoints and cloud workloads. From 3.8.0 until 4.14.7, the _getattributes() function in src/os_xml/os_xml.c recursively processes every XML attribute without a depth limit while allocating two large local buffers in each stack frame. An enrolled agent can submit a Windows EventChannel event containing an element with enough attributes to exhaust the analysisd worker-thread stack, trigger a segmentation fault, and interrupt log ingestion. The element-depth limit in _ReadElem() does not constrain the number of attributes on one element, so it does not prevent this condition. This issue is fixed in version 4.14.7.
References
security-advisories@github.comhttps://github.com/wazuh/wazuh/commit/2ac70941c5980a5dd24ad8a0f2be559f840e6a67
security-advisories@github.comhttps://github.com/wazuh/wazuh/pull/37147
security-advisories@github.comhttps://github.com/wazuh/wazuh/releases/tag/v4.14.7
security-advisories@github.comhttps://github.com/wazuh/wazuh/security/advisories/GHSA-9wv5-7qwx-m9w5
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/wazuh/wazuh/security/advisories/GHSA-9wv5-7qwx-m9w5
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "wazuh",
          "vendor": "wazuh",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 3.8.0, \u003c 4.14.7"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Wazuh is an open-source security platform providing unified XDR and SIEM protection for endpoints and cloud workloads. From 3.8.0 until 4.14.7, the _getattributes() function in src/os_xml/os_xml.c recursively processes every XML attribute without a depth limit while allocating two large local buffers in each stack frame. An enrolled agent can submit a Windows EventChannel event containing an element with enough attributes to exhaust the analysisd worker-thread stack, trigger a segmentation fault, and interrupt log ingestion. The element-depth limit in _ReadElem() does not constrain the number of attributes on one element, so it does not prevent this condition. This issue is fixed in version 4.14.7."
    }
  ],
  "id": "CVE-2026-61811",
  "lastModified": "2026-09-24T19:17:15.127",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-61811",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-24T18:02:16.205270Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-24T18:17:16.990",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/wazuh/wazuh/commit/2ac70941c5980a5dd24ad8a0f2be559f840e6a67"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/wazuh/wazuh/pull/37147"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/wazuh/wazuh/releases/tag/v4.14.7"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/wazuh/wazuh/security/advisories/GHSA-9wv5-7qwx-m9w5"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/wazuh/wazuh/security/advisories/GHSA-9wv5-7qwx-m9w5"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-674"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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