CVE-2026-72679 Uncontrolled Recursion in Elasticsearch Leading to Denial of Service
An authenticated user with read-only access can cause a denial of service in Elasticsearch by submitting a deeply nested intervals query pattern.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-72679?
CVE-2026-72679 is a medium-severity denial of service vulnerability in Elastic Elasticsearch, published on 13 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Elasticsearch does not apply its configurable input length restriction to a user-supplied pattern accepted by an intervals query. Compiling a deeply nested pattern drives unbounded recursion that exhausts the thread stack and raises a fatal error, terminating the Elasticsearch node process and causing a denial of service for that node. An authenticated user holding only read-only privileges on a single searchable index can trigger the condition with one small search request.
Weakness: CWE-674
Which versions are affected by CVE-2026-72679?
1 open source package ship an affected version, including elasticsearch. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
elasticsearch Bitnami | From 8.19.0 | 8.19.20, 9.4.5 |
Products include Elastic Elasticsearch.
How do I fix CVE-2026-72679?
Upgrade elasticsearch to a fixed version for your release line: 8.19.20 or 9.4.5.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-72679 being exploited?
There is no known exploitation of CVE-2026-72679 in the wild and no public exploit code.
Other vulnerabilities in Elastic Elasticsearch
- CVE-2015-1427 Elasticsearch Groovy Scripting Engine Remote Code Execution
- CVE-2014-3120 Elasticsearch Remote Code Execution
- CVE-2015-5377 Code injection in n/a
- CVE-2026-72649 Deserialization of Untrusted Data in Elasticsearch Leading to Remote Code Execution
- CVE-2026-72642 Use of Out-of-range Pointer Offset in the Elasticsearch Machine Learning Native Inference Process
Sources
Also known as BIT-elasticsearch-2026-72679, CLEANSTART-2026-RH85110, CLEANSTART-2026-SY87191, GHSA-3w2j-qqf9-7gjm, MINI-24f4-g97m-833m, MINI-35g2-r26j-9fgr and 15 more.