Elastic Cloud Enterprise (ECE) 3.8.6 and 4.2.1 Security Update (ESA-2026-215)
// AI summary
Elastic Cloud Enterprise (ECE) versions up to 3.8.5 and 4.0 have an Improper Link Resolution flaw allowing authentication bypass and unauthorized configuration changes via Symlink Attack.
// from the source
Improper Link Resolution Before File Access ('Link Following') in Elastic Cloud Enterprise (ECE) Leading to Authentication Bypass Improper Link Resolution Before File Access ('Link Following') (CWE-59) in Elastic Cloud Enterprise (ECE) can lead to authentication bypass and unauthorized changes to the configuration of other deployments on the same host via Symlink Attack (CAPEC-132). Affected Versions: 1.x, 2.x and 3.x: All versions from 1.0.0 up to and including 3.8.5 4.x: All versions from 4.0.