{"api_version":"1","generated_at":"2026-10-02T22:47:54+00:00","cve":"CVE-2026-61811","urls":{"html":"https://cve.report/CVE-2026-61811","api":"https://cve.report/api/cve/CVE-2026-61811.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-61811","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-61811"},"summary":{"title":"Wazuh: Unbounded Recursion in os_xml `_getattributes()` Causes analysisd Worker Thread Stack Exhaustion","description":"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.","state":"PUBLISHED","assigner":"GitHub_M","published_at":"2026-09-24 18:17:16","updated_at":"2026-09-30 16:44:39"},"problem_types":["CWE-674","CWE-674 CWE-674: Uncontrolled Recursion"],"metrics":[{"version":"3.1","source":"security-advisories@github.com","type":"Secondary","score":"6.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":6.5,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"6.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"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"}}],"references":[{"url":"https://github.com/wazuh/wazuh/releases/tag/v4.14.7","name":"https://github.com/wazuh/wazuh/releases/tag/v4.14.7","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/wazuh/wazuh/pull/37147","name":"https://github.com/wazuh/wazuh/pull/37147","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/wazuh/wazuh/security/advisories/GHSA-9wv5-7qwx-m9w5","name":"https://github.com/wazuh/wazuh/security/advisories/GHSA-9wv5-7qwx-m9w5","refsource":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/wazuh/wazuh/commit/2ac70941c5980a5dd24ad8a0f2be559f840e6a67","name":"https://github.com/wazuh/wazuh/commit/2ac70941c5980a5dd24ad8a0f2be559f840e6a67","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-61811","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-61811","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"wazuh","product":"wazuh","version":"affected >= 3.8.0, < 4.14.7","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-61811","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-09-24T18:02:16.205270Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-09-24T18:02:33.090Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"references":[{"tags":["exploit"],"url":"https://github.com/wazuh/wazuh/security/advisories/GHSA-9wv5-7qwx-m9w5"}],"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"product":"wazuh","vendor":"wazuh","versions":[{"status":"affected","version":">= 3.8.0, < 4.14.7"}]}],"descriptions":[{"lang":"en","value":"Wazuh is an open-source security platform providing unified XDR and SIEM protection for endpoints and cloud workloads. 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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.","Type":"Description","Title":"Wazuh: Unbounded Recursion in os_xml `_getattributes()` Causes a"}]}}}