{"id":"CVE-2026-102411","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-102411","generatedAt":"2026-10-28T01:41:25.671Z","title":"Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can lead to Denial of Service via Excessive Allocation (CAPEC-130).","description":"Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can lead to Denial of Service via Excessive Allocation (CAPEC-130). Elasticsearch enforces a size limit on the user-supplied metadata field for each individual template resource, but does not limit the total memory used when multiple such resources are retrieved together. A user holding the *manage_index_templates* cluster privilege can register multiple resources each within the individual limit. Retrieving them together materializes all of their metadata values in memory at once, exhausting available heap and causing the affected node to fail with an out-of-memory error, resulting in a denial of service.","published":"2026-10-06T20:17:13.000Z","lastModified":"2026-10-09T15:49:36.000Z","status":"Analyzed","sourceIdentifier":"security@elastic.co","cvss":{"version":"3.1","score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-770"],"affected":["elastic/elasticsearch"],"epss":{"score":0.00309,"percentile":0.23563,"date":"2026-10-26","history":[{"date":"2026-10-07","score":0.00302,"percentile":0.21068}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.31%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-06T20:17:13.000Z","detail":{"score":"6.5","severity":"MEDIUM","publishedAt":"2026-10-06T20:17:13.180Z"},"summary":"New CVE, medium severity (CVSS 6.5)."}],"references":[{"url":"https://discuss.elastic.co/t/elasticsearch-9-4-7-9-5-3-8-19-23-security-update-esa-2026-192/390865","tags":["Vendor Advisory"],"source":"security@elastic.co"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-102411","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}