CVEFinder.io

CVE-2026-27806

⚠️ high
Summary

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 t

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.

CVSS Score
7.8
High
EPSS Score
0.1
Exploit Probability
Published Date
2026-04-08
First Seen: 2026-04-09
📊 Relative Risk Intelligence

This CVE is Moderate Risk - more severe than 68.5% of all 365,890 vulnerabilities in our database.

#115,129
Above average severity
Severity Percentile
🎯 CISA SSVC Assessment Updated: Apr 9, 2026
🔍 Exploitation Status
None
No known exploits
⚙️ Automatable
NO
Requires human interaction
💥 Technical Impact
Total
Complete system compromise possible
SSVC data provided by CISA
Last Modified 2026-07-25
Source NVD 🔗
CVSS Vector 3.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE IDs (Weakness Types)
CWE-78

📦 Affected Products 1

Vendor Product Status Affected Versions
fleetdm fleet Affected
< 4.81.1

🔗 References 1

https://github.com/fleetdm/fleet/security/advisories...
Vendor Advisory

🔗 Related CVEs 6

CVE ID Severity CVSS EPSS Summary Published
CVE-2026-103264 ⛔ critical 9.1 0.3 Fleet versions before 4.87.0 contain an authentication bypass vulnerability in the device API that accepts hostnames and... 2026-10-01
CVE-2026-103265 🔶 medium 4.3 0.2 Fleet versions before 4.89.0 fail to properly filter MDM command results by team authorization in the commands/results e... 2026-10-01
CVE-2026-101046 ℹ️ low 3.1 0.2 Fleet before 4.89.0 contains an SQL injection vulnerability in the activity list endpoints (GET /api/v1/fleet/activities... 2026-09-27
CVE-2026-101047 🔶 medium 5.3 0.2 Fleet before 4.87.0 does not protect the two endpoints that serve in-house iOS application packages and manifests (enter... 2026-09-27
CVE-2026-23998 ⚠️ high 7.5 0.0 Fleet is open source device management software. Prior to version 4.81.0, a vulnerability in Fleet’s Windows MDM manag... 2026-05-14
CVE-2026-24000 🔶 medium 5.3 0.1 Fleet is open source device management software. Prior to version 4.80.1, Fleet trusted client-supplied IP address heade... 2026-05-14
These CVEs affect the same products