6.5
Medium
CVE-2026-72683 A flaw in Elasticsearch allows an authenticated user with the privileges required to invoke the simulate pipeline API…
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Elasticsearch 9.4 | 9.4.0 → 9.4.3 | No fix stated |
| Elasticsearch 9.3 | 9.3.0 → 9.3.7 | No fix stated |
| Elasticsearch 5.0 | 5.0.0 → 8.19.18 | No fix stated |
Other CVEs of Elasticsearch
The 91 CVEs of Elasticsearch →
CVE-2026-115715
Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can lead to denial of service via a…
6.5
Medium
CVE-2026-115710
Use of Cache Containing Sensitive Information (CWE-524) in Elasticsearch can lead to information disclosure and…
4.2
Medium
CVE-2026-115298
Incorrect Authorization (CWE-863) in Elasticsearch can lead to information disclosure via Accessing Functionality Not…
4.3
Medium
CVE-2026-115290
Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to denial of service via Serialized Data with Nested Payloads…
7.5
High