CVE WatchJul 25, 2026

CVE-2026-27806

Fleet is open source device management software. Prior to 4.81.1, the Orbit agent's FileVault disk encryption key rotation flow on collects

CVSS

7.8

High

EPSS

0.1%

KEV

—

Exploit Today

0-100

Published: Apr 8, 2026 · Last modified: Jul 25, 2026 · CWE-78

EPSS · 30d

0.1%EPSS · 30 days0.1%

2026-08-032026-08-31

Technical description

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.

Official references

github.comhttps://github.com/fleetdm/fleet/security/advisories/GHSA-rphv-h674-5hp2

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