Elasticsearch REST client vulnerability (CVE-2021-22134)
Issue date: 06-07-2021Affects versions: 14.5, 13.4, 12.6
Security Issue ID
SECURITY-217
Affected Product Version(s)
14.5.1, 12.6.15, 13.4.8 and previous releases.
Severity
medium
Description
A document disclosure flaw was found in Elasticsearch versions after 7.6.0 and before 7.11.0 when Document or Field Level Security is used. Get requests do not properly apply security permissions when executing a query against a recently updated document. This affects documents that have been updated and not yet refreshed in the index. This could result in the search disclosing the existence of documents and fields the attacker should not be able to view.
The Elasticsearch client dependency has been updated in 14.5.2, 13.4.9 and 12.6.16.
Instructions
Customers using the 12.x, 13.x and 14.x major versions are recommended to upgrade to the latest version in that series.