{"id":"CVE-2026-115710","title":"Use of Cache Containing Sensitive Information in Elasticsearch Leading to Information Disclosure","summary":"Use of Cache Containing Sensitive Information (CWE-524) in Elasticsearch can lead to information disclosure and incorrect search results via specially crafted search requests. For some query types, Elasticsearch can share cached query re…","severity":"medium","cvss":4.2,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N","cvssSource":"cna","cwe":["CWE-524"],"vendor":"Elastic","product":"Elasticsearch","affected":["Elasticsearch >= 8.9.0 <= 8.19.23","Elasticsearch >= 9.0.0 <= 9.4.8","Elasticsearch >= 9.5.0 <= 9.5.5"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-03T17:30:03.351642Z"},"published":"2026-11-03","updated":"2026-11-03","sourceUpdated":"2026-11-03T17:30:13.952Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-115710","references":[{"url":"https://discuss.elastic.co/t/elasticsearch-8-19-24-9-4-9-9-5-6-security-update-esa-2026-210/391363"}],"tags":["cve.org"],"epss":0.00169,"epssPercentile":0.06357,"ingestedAt":"2026-11-05T20:33:06.326Z","slug":"CVE-2026-115710","body":"## Overview\n\nUse of Cache Containing Sensitive Information (CWE-524) in Elasticsearch can lead to information disclosure and incorrect search results via specially crafted search requests. For some query types, Elasticsearch can share cached query results between users who have field-level security restrictions and users who do not. A user restricted by field-level security can learn which documents match a value in a field that they cannot read. A restricted user can also cause users with full access to receive incomplete search results. Disclosure is only possible when a user with full access ran the same query on the same shard recently.\n\n## Affected\n\n- `Elasticsearch >= 8.9.0 <= 8.19.23`\n- `Elasticsearch >= 9.0.0 <= 9.4.8`\n- `Elasticsearch >= 9.5.0 <= 9.5.5`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":23,"depthScoreParts":{"impact":23.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}