CVE-2026-27806
High · 7.8CVSS
7.8
EPSS
0.1%
Published
Apr 8, 2026
CISA due date
—
The record
Fleet is open source device management software. Prior to 4.81.1, 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. This vulnerability is fixed in 4.81.1.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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