CVE-2026-56144 Incorrect Authorization in Elasticsearch Leading to Information Disclosure
Authenticated users with limited privileges can bypass authorization checks in the ingest simulation feature to read data and metadata from unauthorized indices.
- 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-2026-56144?
CVE-2026-56144 is a medium-severity missing authorization vulnerability in Elastic Elasticsearch, published on 21 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Incorrect Authorization (CWE-863) in Elasticsearch can allow an authenticated user with limited index privileges to exploit insufficient authorization controls in the ingest simulation feature. By targeting indices they are not authorized to access directly, the user can cause those indices' configured ingest pipelines to execute and return their output, potentially disclosing data processed or enriched by those pipelines. Additionally, the same feature can be used to retrieve index mapping metadata for indices the user are not authorized to access directly.
Weakness: CWE-863
Which versions are affected by CVE-2026-56144?
1 open source package ship an affected version, including elasticsearch. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
elasticsearch Bitnami | From 8.12.0 | 8.19.18, 9.3.7, 9.4.4 |
Products include Elastic Elasticsearch.
How do I fix CVE-2026-56144?
Upgrade elasticsearch to a fixed version for your release line: 8.19.18, 9.3.7 or 9.4.4.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-56144 being exploited?
There is no known exploitation of CVE-2026-56144 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-2026-56144, CLEANSTART-2026-GB20617, GHSA-9fhm-53xw-h9c3, MINI-2xv6-hw46-48x7, MINI-3f99-qfxm-4fh9, MINI-5582-fw7w-xf78 and 19 more.