What is CVE-2026-34386?

CVE-2026-34386 is a high-severity vulnerability in Fleetdm Fleet, classified under SQL Injection. CVSS score: 8.8/10. Published 2026-03-27.

How severe is CVE-2026-34386?

High severity. CVSS v3 base score is 8.8 out of 10.

SQL Injection in Fleetdm Fleet

CVE-2026-34386

Fleet is open source device management software. Prior to 4.81.0, a SQL injection vulnerability in Fleet's MDM bootstrap package configuration allows an authenticated user with Team Admin or Global Admin privileges to modify arbitrary team configurations, exfiltrate sensitive data from the Fleet database, and inject arbitrary content into team configs via direct API calls. Version 4.81.0 patches the issue.

Vulnerability class: SQL Injection

EPSS: 0.003 (24.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Fleetdm Fleet — versions < 4.81.0

Weakness classification (CWE)

CWE-89 — SQL Injection

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2026-34386?: CVE-2026-34386 is a high-severity vulnerability in Fleetdm Fleet, classified under SQL Injection. CVSS score: 8.8/10. Published 2026-03-27.
How severe is CVE-2026-34386?: High severity. CVSS v3 base score is 8.8 out of 10.