CVE-2026-103007 Elasticsearch - Broken Access Control

Elasticsearch contains an incorrect authorization vulnerability caused by improper enforcement of delegated administrative privilege scope during authorization checks, letting delegated users escalate privileges to access restricted indices, exploit requires delegated role-management privilege.

CVSS base score 7.2 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.34% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Privilege Escalation, Information Disclosure
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Published
6 October 2026
Updated
15 October 2026
Weakness
CWE-863

Vendor fix

Update to the latest Elasticsearch version with fixed authorization checks.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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