medium6.5
CVE-2026-72657
Authorization Bypass Through User-Controlled Key (CWE-639) in Fleet Server can lead to information disclosure via Manipulating User-Controlled Variables (CAPEC…
Impact
Authorization Bypass Through User-Controlled Key (CWE-639) in Fleet Server can lead to information disclosure via Manipulating User-Controlled Variables (CAPEC-77). The authorization decision for artifact downloads relied on a client-supplied value that was persisted without being validated against the server-side record of the requesting agent's assignment. An authenticated party in possession of a valid enrolled agent credential could therefore retrieve a policy the agent is not assigned to.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Elastic | Fleet Server | from 8.3.0 before 8.19.20 from 9.0.0 before 9.4.5 Version 9.5.0 |