CVE-2026-61811
mediumWazuh is an open-source security platform providing unified XDR and SIEM protection for endpoints and cloud workloads.
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/wazuh/wazuh/commit/2ac70941c5980a5dd24ad8a0f2be559f840e6a67 security-advisories@github.com
- https://github.com/wazuh/wazuh/pull/37147 security-advisories@github.com
- https://github.com/wazuh/wazuh/releases/tag/v4.14.7 security-advisories@github.com
- https://github.com/wazuh/wazuh/security/advisories/GHSA-9wv5-7qwx-m9w5 security-advisories@github.com
- https://github.com/wazuh/wazuh/security/advisories/GHSA-9wv5-7qwx-m9w5 134c704f-9b21-4f2e-91b3-4a467353bcc0