Uncontrolled Recursion in Elasticsearch Leading to Denial of Service (Elastic Elasticsearch)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.57 % · percentile 47 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- elastic
- NVD status
- Analyzed
Description
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.
Weaknesses (CWE)
- CWE-674 — Uncontrolled Recursion
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | elastic |
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · security@elastic.co (Secondary) |
European references
- ENISA EUVD · EUVD-2026-58247
- GCVE · GCVE-0-2026-72683
Affected configurations (NVD CPE)
cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*≥ 5.0.0 < 8.19.19cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*≥ 9.3.0 < 9.3.8cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*≥ 9.4.0 < 9.4.4
Affected products
| Product | Versions |
|---|---|
| Elastic · Elasticsearch | affected 5.0.0 ≤ 8.19.18 ; affected 9.3.0 ≤ 9.3.7 ; affected 9.4.0 ≤ 9.4.3 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |