CVE-2026-61811

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-61811", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-07-10T20:17:57.991Z", "datePublished": "2026-09-24T17:48:01.629Z", "dateUpdated": "2026-09-24T18:02:33.090Z"}, "containers": {"cna": {"title": "Wazuh: Unbounded Recursion in os_xml `_getattributes()` Causes analysisd Worker Thread Stack Exhaustion", "problemTypes": [{"descriptions": [{"cweId": "CWE-674", "lang": "en", "description": "CWE-674: Uncontrolled Recursion", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"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": [{"name": "https://github.com/wazuh/wazuh/security/advisories/GHSA-9wv5-7qwx-m9w5", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/wazuh/wazuh/security/advisories/GHSA-9wv5-7qwx-m9w5"}, {"name": "https://github.com/wazuh/wazuh/pull/37147", "tags": ["x_refsource_MISC"], "url": "https://github.com/wazuh/wazuh/pull/37147"}, {"name": "https://github.com/wazuh/wazuh/commit/2ac70941c5980a5dd24ad8a0f2be559f840e6a67", "tags": ["x_refsource_MISC"], "url": "https://github.com/wazuh/wazuh/commit/2ac70941c5980a5dd24ad8a0f2be559f840e6a67"}, {"name": "https://github.com/wazuh/wazuh/releases/tag/v4.14.7", "tags": ["x_refsource_MISC"], "url": "https://github.com/wazuh/wazuh/releases/tag/v4.14.7"}], "affected": [{"vendor": "wazuh", "product": "wazuh", "versions": [{"version": ">= 3.8.0, < 4.14.7", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-24T17:48:01.629Z"}, "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."}], "source": {"advisory": "GHSA-9wv5-7qwx-m9w5", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/wazuh/wazuh/security/advisories/GHSA-9wv5-7qwx-m9w5", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-24T18:02:16.205270Z", "id": "CVE-2026-61811", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-24T18:02:33.090Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-61811", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-24T18:02:16.205270Z"}}}], "references": [{"url": "https://github.com/wazuh/wazuh/security/advisories/GHSA-9wv5-7qwx-m9w5", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-24T18:02:30.450Z"}}], "cna": {"title": "Wazuh: Unbounded Recursion in os_xml `_getattributes()` Causes analysisd Worker Thread Stack Exhaustion", "source": {"advisory": "GHSA-9wv5-7qwx-m9w5", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}}], "affected": [{"vendor": "wazuh", "product": "wazuh", "versions": [{"status": "affected", "version": ">= 3.8.0, < 4.14.7"}]}], "references": [{"url": "https://github.com/wazuh/wazuh/security/advisories/GHSA-9wv5-7qwx-m9w5", "name": "https://github.com/wazuh/wazuh/security/advisories/GHSA-9wv5-7qwx-m9w5", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/wazuh/wazuh/pull/37147", "name": "https://github.com/wazuh/wazuh/pull/37147", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/wazuh/wazuh/commit/2ac70941c5980a5dd24ad8a0f2be559f840e6a67", "name": "https://github.com/wazuh/wazuh/commit/2ac70941c5980a5dd24ad8a0f2be559f840e6a67", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/wazuh/wazuh/releases/tag/v4.14.7", "name": "https://github.com/wazuh/wazuh/releases/tag/v4.14.7", "tags": ["x_refsource_MISC"]}], "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-674", "description": "CWE-674: Uncontrolled Recursion"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-24T17:48:01.629Z"}}}, "cveMetadata": {"cveId": "CVE-2026-61811", "state": "PUBLISHED", "dateUpdated": "2026-09-24T18:02:33.090Z", "dateReserved": "2026-07-10T20:17:57.991Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-09-24T17:48:01.629Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "wazuh", "vendor": "wazuh", "versions": [{"status": "affected", "version": ">= 3.8.0, < 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": "2026-09-30T16:44:39.840", "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": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-674"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[3.8.0,4.14.7)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "wazuh", "source": "cna", "vendor": "wazuh"}, "product": "wazuh", "vendor": "wazuh"}], "created": "2026-09-25T07:15:17.053821+00:00", "updated": "2026-09-25T08:15:17.054737+00:00", "vendors": ["wazuh", "wazuh$PRODUCT$wazuh"]}