CVE-2026-72647

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{"bugzilla": {"description": "Elasticsearch: Elasticsearch: Denial of Service via uncontrolled recursion in search requests", "id": "2515578", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2515578"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-606", "details": ["A flaw was found in Elasticsearch. An authenticated user with read privileges on a single index can submit a specially crafted search request. This request, containing deeply nested serialized data, is processed without a depth limit, leading to uncontrolled recursion. This can exhaust the thread stack and terminate the affected node, resulting in a denial of service."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}, "name": "CVE-2026-72647", "package_state": [{"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Fix deferred", "package_name": "rhoai/odh-feature-server-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:quay:3", "fix_state": "Not affected", "package_name": "quay/quay-rhel8", "product_name": "Red Hat Quay 3"}, {"cpe": "cpe:/a:redhat:quay:3", "fix_state": "Not affected", "package_name": "quay/quay-rhel9", "product_name": "Red Hat Quay 3"}], "public_date": "2026-08-13T19:13:36Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-72647\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-72647\nhttps://discuss.elastic.co/t/elasticsearch-8-19-20-9-4-5-9-5-1-security-update-esa-2026-118/389497"], "statement": "This flaw has a Moderate impact. An uncontrolled recursion vulnerability exists in Elasticsearch's search API retriever framework, where a deeply nested search request is processed without a depth limit. A remote, authenticated attacker with read-level index access can send a specially crafted search request that exhausts the thread stack and terminates the affected Elasticsearch node, resulting in denial of service. Red Hat products shipping Elasticsearch versions prior to 8.0.0 are not affected, as the vulnerable code was introduced in that version.", "threat_severity": "Moderate"}

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