AUGUST 14, 2026
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Case File

CVE-2026-72643

HIGH · CVSS 7.1 EPSS 0.25%

Source: NVD + CISA KEV + EPSS · Published 2026-08-13 · Last synced 2026-08-14

CyberRota Analysis

AI-Generated

The vulnerability affects Kibana Agent Builder, which improperly verifies ownership of private agents by relying on non-unique usernames across different Elasticsearch authentication realms. This flaw can lead to unauthorized access, allowing attackers to view, modify, or delete agents they do not own. Organizations using Kibana with multiple authentication realms should prioritize addressing this issue to prevent potential exploitation.

CVE
CVE-2026-72643
Severity
HIGH
CVSS
7.1
EPSS
0.25%

Original NVD Description

Kibana Agent Builder determines whether a caller owns a private agent by comparing a stable user identifier when one is recorded, and falling back to a comparison of the username when it is not. A username is not unique across Elasticsearch authentication realms, so two distinct principals that share a username in different realms are treated as the same owner. This discloses the configuration and instructions of an agent the caller does not own, and allows that agent to be altered or removed.