{"id":"CVE-2026-56149","aliases":["BIT-elasticsearch-2026-56149","EUVD-2026-41072","GHSA-p6pw-6f2m-xxpg","UBUNTU-CVE-2026-56149"],"status":"published","title":"Allocation of Resources Without Limits or Throttling in Elasticsearch Leading to Denial of Service","description":"Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130). A user with elevated privileges can submit a specially crafted machine learning request that causes excessive memory consumption, which may render the affected node unavailable.","severity":{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.005,"percentile":0.43176,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-770"],"published":"2026-07-01T16:21:24Z","modified":"2026-10-28T11:15:10Z","fixes":[{"ecosystem":"Bitnami","package":"elasticsearch","fixed_in":["8.19.17","9.3.6","9.4.3"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"elasticsearch","ranges":[{"type":"SEMVER","events":[{"introduced":"8.0.0"},{"fixed":"8.19.17"},{"introduced":"9.0.0"},{"fixed":"9.3.6"},{"introduced":"9.4.0"},{"fixed":"9.4.3"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"elasticsearch","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"]}],"products":[{"vendor":"elastic","product":"elasticsearch"}],"references":[{"url":"https://discuss.elastic.co/t/elasticsearch-8-19-17-9-3-6-9-4-3-security-update-esa-2026-43","tags":["Vendor Advisory","advisory","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56149","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-p6pw-6f2m-xxpg"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56149.json","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-56149","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-56149","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-56149","title":"Allocation of Resources Without Limits or Throttling in Elasticsearch Leading to Denial of Service","description":"Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130). A user with elevated privileges can submit a specially crafted machine learning request that causes excessive memory consumption, which may render the affected node unavailable.","status":"published","published":"2026-07-01T16:21:24.437Z","modified":"2026-07-01T17:25:09.581Z","cvss":[{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T13:37:02.780526Z"}],"euvd":[{"id":"EUVD-2026-41072","description":"Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130). A user with elevated privileges can submit a specially crafted machine learning request that causes excessive memory consumption, which may render the affected node unavailable.","status":"published","published":"2026-07-01T16:21:24Z","modified":"2026-07-01T17:25:09Z","cvss":[{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T18:20:19.066641Z"}],"ghsa":[{"id":"GHSA-p6pw-6f2m-xxpg","title":"Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can lead to a...","description":"Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130). A user with elevated privileges can submit a specially crafted machine learning request that causes excessive memory consumption, which may render the affected node unavailable.","status":"published","published":"2026-07-01T18:31:55Z","modified":"2026-07-01T18:32:04Z","cvss":[{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T15:09:09.679694Z"}],"nvd":[{"id":"CVE-2026-56149","description":"Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130). A user with elevated privileges can submit a specially crafted machine learning request that causes excessive memory consumption, which may render the affected node unavailable.","status":"published","published":"2026-07-01T17:16:36.957Z","modified":"2026-10-25T17:10:00.197Z","cvss":[{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:12:27.199837Z"}],"osv":[{"id":"CVE-2026-56149","title":"Allocation of Resources Without Limits or Throttling in Elasticsearch Leading to Denial of Service","description":"Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130). A user with elevated privileges can submit a specially crafted machine learning request that causes excessive memory consumption, which may render the affected node unavailable.","status":"published","published":"2026-07-01T16:21:24.437Z","modified":"2026-10-28T11:15:10.145011052Z","cvss":[{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T15:45:11.609219Z"},{"id":"UBUNTU-CVE-2026-56149","description":"Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130). A user with elevated privileges can submit a specially crafted machine learning request that causes excessive memory consumption, which may render the affected node unavailable.","status":"published","published":"2026-07-01T17:16:00Z","modified":"2026-07-09T15:21:04Z","cvss":[{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T16:56:41.382716Z"},{"id":"BIT-elasticsearch-2026-56149","title":"Allocation of Resources Without Limits or Throttling in Elasticsearch Leading to Denial of Service","description":"Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130). A user with elevated privileges can submit a specially crafted machine learning request that causes excessive memory consumption, which may render the affected node unavailable.","status":"published","published":"2026-07-06T05:48:38.506Z","modified":"2026-09-08T08:47:15.086101755Z","updated_at":"2026-11-02T15:28:29.563843Z"}]}}