Elastic Cloud Enterprise (ECE) 3.8.6 and 4.2.1 Security Update (ESA-2026-218)

Insertion of Sensitive Information into Externally-Accessible File or Directory in Elastic Cloud Enterprise (ECE) Leading to Credential Disclosure Insertion of Sensitive Information into Externally-Accessible File or Directory (CWE-538) in Elastic Cloud Enterprise (ECE) can lead to credential disclosure via Retrieve Embedded Sensitive Data (CAPEC-37). ECE stores runtime information about platform service containers in a location that lower-privileged platform components can read, and this information includes secrets from the container configuration. An attacker with access to the internal EC…

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On 10/29/2026, 07:46 PM, Elastic Security Announcements published "Elastic Cloud Enterprise (ECE) 3.8.6 and 4.2.1 Security Update (ESA-2026-218)" (type: Advisory). Related technologies: Elasticsearch / OpenSearch.