CVE-2026-72684Allocation of Resources Without Limits or Throttling in Elasticsearch Leading to Denial of Service
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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A flaw in Elasticsearch allows an authenticated user holding only read privileges to submit a small search request containing a crafted user-supplied input. Processing that input causes a specific internal component to allocate memory without any upper bound, and the allocation occurs outside the scope of the existing memory accounting controls that were intended to constrain it. The resulting out-of-memory condition is fatal and terminates the affected node process, causing a denial of service.
- CVSS
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-770
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- elastic
- NVD analysis
- Analyzed
- Record last updated
- Aug 13, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Elastic Elasticsearch elastic:elasticsearch (from the name) | from 8.0.0 through 8.19.19; from 9.0.0 through 9.4.4 | CNA record |
elastic elasticsearch elastic:elasticsearch | from 8.0.0 before 8.19.20; from 9.0.0 before 9.4.5 | NVD |
References
- https://discuss.elastic.co/t/elasticsearch-8-19-20-9-4-5-security-update-esa-2026-76/389508vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.