CVE-2026-72657
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk19th percentile - higher than 19% of all known CVEs
Summary
Authorization bypass through user-controlled key in Fleet Server can lead to information disclosure. The authorization decision for artifact downloads relied on a client-supplied value that was not validated against the server-side record of the agent's assignment. An authenticated party with valid agent credentials could retrieve a policy the agent is not assigned to.
Risk Assessment
A person with valid agent credentials can access policies unrelated to their agent, potentially exposing sensitive configurations and compromising management integrity.
Recommendation
Update Fleet Server to a patched version and ensure authorization relies on server-side data, not client-supplied values. Conduct an audit of artifact download access.
Original NVD description (English source)
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.

