[ CVE-2026-103007 · Published 6 Oct 2026 ]
Vulnerability in Elasticsearch
[ Description ]Official description
Incorrect Authorization (CWE-863) in Elasticsearch can lead to Privilege Escalation via a delegated administrative privilege whose scope is not fully enforced during authorization checks. Elasticsearch contains an incorrect authorization weakness in a configurable, non-default privilege that lets an administrator delegate limited role-management capability to another user, scoped to specific indices. The authorization check that enforces this scoping does not correctly account for a role-definition setting that can expand the matched index set. A user holding this delegated privilege with a broadly-scoped index pattern can exploit this inconsistency by updating their own assigned role to gain access to indices that should remain restricted, including internal security data. This can enable further escalation up to full administrative control of the cluster.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.
[ Advisories ]Government CERT advisories
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CERT-FRCERTFR-2026-AVI-1276
Multiple vulnerabilities in Elastic products Translated from French
Multiple vulnerabilities have been discovered in Elastic products. Some of them allow an attacker to cause privilege escalation, a breach of data confidentiality and a security policy bypass.
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BSI CERT-BundWID-SEC-2026-3784
Elasticsearch: Multiple vulnerabilities Translated from German