CVE-2026-103007
Incorrect Authorization (CWE-863) in Elasticsearch can lead to Privilege Escalation via a delegated administr…
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.
- Vendor
- elastic
- Product
- elasticsearch
- CVSS 3.1
- 7.2 (high), scored by security@elastic.coCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- CWE
- CWE-863
- Published
- 2026-10-06
- NVD modified
- 2026-10-09
- NVD status
- Analyzed
Not in the CISA KEV catalogue at the last update.
EPSS
0.34% chance of exploitation in the next 30 days (percentile 25th)
FIRST EPSS, updated 17 Oct 2026. About EPSS
CVSS is severity, EPSS is likelihood, KEV means already exploited. EPSS is a statistical probability, not a certainty: a low score does not make a bug safe, and a high one does not prove it is being exploited.
ThreatWire coverage
References
- discuss.elastic.co (Vendor Advisory)
Data last updated 18 Oct 2026. Sources: NVD API 2.0, FIRST EPSS. Links: NVD, CISA KEV. Metadata only. ThreatWire does not host exploit code.