{"id":"BIT-elasticsearch-2026-72649","summary":"Deserialization of Untrusted Data in Elasticsearch Leading to Remote Code Execution","details":"Deserialization of Untrusted Data (CWE-502) in the Elasticsearch machine learning component can lead to remote code execution via Object Injection (CAPEC-586). A specially crafted trained model artifact could cause attacker-controlled logic to execute with a materially broader system-call surface than intended. Exploitation requires an authenticated user with sufficient privileges to create and deploy trained models.","aliases":["CVE-2026-72649"],"modified":"2026-09-08T08:47:15.633666610Z","published":"2026-09-03T08:40:41.267Z","database_specific":{"severity":"High","cpes":["cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*"]},"references":[{"type":"ADVISORY","url":"https://discuss.elastic.co/t/elasticsearch-8-19-20-9-4-5-9-5-1-security-update-esa-2026-114/390087"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72649"}],"affected":[{"package":{"name":"elasticsearch","ecosystem":"Bitnami","purl":"pkg:bitnami/elasticsearch"},"ranges":[{"type":"SEMVER","events":[{"introduced":"8.0.0"},{"fixed":"8.19.20"},{"introduced":"9.0.0"},{"fixed":"9.4.5"},{"introduced":"9.5.0"},{"fixed":"9.5.1"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/elasticsearch/BIT-elasticsearch-2026-72649.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}],"schema_version":"1.9.0"}