Elastic Cloud Enterprise (ECE) 4.2.1 Security Update (ESA-2026-222)

Improper Link Resolution Before File Access ('Link Following') in Elastic Cloud Enterprise (ECE) Leading to Information Disclosure and Data Modification Improper Link Resolution Before File Access ('Link Following') (CWE-59) in Elastic Cloud Enterprise (ECE) can lead to unauthorized read and write access to data of other deployments on the same host via Symlink Attack (CAPEC-132). Affected Versions: 4.x: All versions from 4.1.0 up to and including 4.2.0 Users on the 3.x release line, including 3.8.x, and on 4.0.x are not affected. The functionality that contains this vulnerability was introdu…

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2026/10/29 19:47，Elastic Security Announcements 发布了“Elastic Cloud Enterprise (ECE) 4.2.1 Security Update (ESA-2026-222)”（类型：漏洞公告）。相关技术：Elasticsearch / OpenSearch。