CVE-2026-56143CWE-770denial-of-service

CVE-2026-56143

Medium · published September 2, 2026

CVSS v3.1
4.9
EPSS
0%
Percentile
37.2
In the wild
Unconfirmed
What it is

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 request that causes excessive memory consumption, which may render the affected node unavailable.

The record
Technical detail
CVSS v3.1
4.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00440 · 37.2th percentile
Weakness
CWE-770 · Allocation of Resources Without Limits or Throttling
Published
2026-09-02T00:17Z
Affected products (2)
ProductVersionsFixed in
elastic/elasticsearch≥ 8.0.0, < 8.19.208.19.20
elastic/elasticsearch≥ 9.0.0, < 9.3.09.3.0
References (1)
https://discuss.elastic.co/t/elasticsearch-8-19-20-9-3-0-security-update-esa-2026-47/390084 · [email protected]
EPSS history
Timeline
  • 03 SEP 03:31Z
    EPSS moved — → 0%
    epss
  • 01 SEP 19:20Z
    Allocation of Resources Without Limits or Throttling in Elasticsearch Leading to Denial of Service
    cvelistv5