{"id":"UBUNTU-CVE-2026-56148","details":"Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user can submit a specially crafted query that causes excessive resource consumption while the request is processed, which may render the affected node unavailable.","modified":"2026-07-09T15:21:04Z","published":"2026-07-01T17:16:00Z","upstream":["CVE-2026-56148"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-56148"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-56148"},{"type":"REPORT","url":"https://discuss.elastic.co/t/elasticsearch-8-19-17-9-3-6-9-4-3-security-update-esa-2026-42"}],"affected":[{"package":{"name":"elasticsearch","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/elasticsearch?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.2+dfsg-1","1.7.3+dfsg-1","1.7.3+dfsg-2","1.7.3+dfsg-3"],"ecosystem_specific":{"binaries":[{"binary_version":"1.7.3+dfsg-3","binary_name":"elasticsearch"},{"binary_version":"1.7.3+dfsg-3","binary_name":"libelasticsearch1.7-java"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-56148.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}