CVE-2026-103007 Incorrect Authorization in Elasticsearch Leading to Privilege Escalation
Attackers with delegated privileges can escalate to full admin by exploiting flawed index scoping in Elasticsearch role management.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-103007?
CVE-2026-103007 is a high-severity vulnerability in Elastic Elasticsearch, published on 6 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim.
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.
Weakness: CWE-863
Which versions are affected by CVE-2026-103007?
1 open source package ship an affected version, including elasticsearch. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
elasticsearch Bitnami | From 8.16.0 | 8.19.22, 9.4.7, 9.5.4 |
Products include Elastic Elasticsearch.
How do I fix CVE-2026-103007?
Upgrade elasticsearch to a fixed version for your release line: 8.19.22, 9.4.7 or 9.5.4.
Is CVE-2026-103007 being exploited?
There is no known exploitation of CVE-2026-103007 in the wild and no public exploit code.
Other vulnerabilities in Elastic Elasticsearch
- CVE-2015-1427 Elasticsearch Groovy Scripting Engine Remote Code Execution
- CVE-2014-3120 Elasticsearch Remote Code Execution
- CVE-2015-5377 Code injection in n/a
- CVE-2026-72649 Deserialization of Untrusted Data in Elasticsearch Leading to Remote Code Execution
- CVE-2026-72642 Use of Out-of-range Pointer Offset in the Elasticsearch Machine Learning Native Inference Process
Sources
Also known as BIT-elasticsearch-2026-103007, CLEANSTART-2026-PW54741, GHSA-5jrv-cmh5-3vmg, MINI-3crm-4p87-69g9, MINI-5g6c-mq29-mvv6, MINI-5xmf-h63q-9784 and 17 more.