Elastic Cloud Enterprise (ECE) 3.8.6 and 4.2.1 Security Update (ESA-2026-221)
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Elastic Cloud Enterprise (ECE) 3.8.6 and 4.2.1 update addresses Incorrect Authorization (CWE-863) allowing authenticated read-only users to modify platform settings.
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Incorrect Authorization in Elastic Cloud Enterprise (ECE) Leading to Unauthorized Modification of Platform Settings Incorrect Authorization (CWE-863) in Elastic Cloud Enterprise (ECE) can lead to unauthorized modification of platform-level settings via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). An authenticated user with read-only access to the platform can change an installation-wide account setting that only platform administrators are permitted to change. Affected Ver