CVE-2026-72683Uncontrolled Recursion 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 with the privileges required to invoke the simulate pipeline API endpoint (https://www.elastic.co/docs/api/doc/elasticsearch/operation/operation-ingest-simulate) to submit a request that causes a self-referential data structure to be created. When a specific internal component later processes that structure, the operation recurses without bound and raises a fatal error that is not handled by the surrounding execution path, terminating the affected node process and resulting in 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-674
- 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 5.0.0 through 8.19.18; from 9.3.0 through 9.3.7; from 9.4.0 through 9.4.3 | CNA record |
elastic elasticsearch elastic:elasticsearch | from 5.0.0 before 8.19.19; from 9.3.0 before 9.3.8; from 9.4.0 before 9.4.4 | NVD |
References
- https://discuss.elastic.co/t/elasticsearch-8-19-19-9-3-8-9-4-4-security-update-esa-2026-75/389496vendor-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.