Advisories for Golang/Github.com/Fleetdm/Fleet/V4 package

2026

Fleet Affected by Local Privilege Escalation via Tcl Command Injection in Orbit

The Orbit agent's FileVault disk encryption key rotation flow on collects a local user's password via a GUI dialog and interpolates it directly into a Tcl/expect script executed via exec.Command("expect", "-c", script). Because the password is inserted into Tcl brace-quoted send {%s}, a password containing } terminates the literal and injects arbitrary Tcl commands. Since Orbit runs as root, this allows a local unprivileged user to escalate to root privileges.

2025
2022

Authentication Bypass by Spoofing

Fleet is an open source osquery manager. In Fleet, due to issues in Go's standard library XML parsing, a valid SAML response may be mutated by an attacker to modify the trusted document. This can result in allowing unverified logins from a SAML IdP. Users that configure Fleet with SSO login may be vulnerable to this issue. This issue is patched The fix was made using https://github.com/mattermost/xml-roundtrip-validator If upgrade to …

Improper Authentication

fleet is an open source device management, built on osquery. expose a limited ability to spoof SAML authentication with missing audience verification. This impacts deployments using SAML SSO in two specific cases: A malicious or compromised Service Provider (SP) could reuse the SAML response to log into Fleet as a user – only if the user has an account with the same email in Fleet, and the user signs into …