SQL Injection in Fleetdm Fleet
CVE-2026-101046
Fleet before 4.89.0 contains an SQL injection vulnerability in the activity list endpoints (GET /api/v1/fleet/activities and GET /api/v1/fleet/hosts/{id}/activities). The deprecated cursor-pagination helper appendListOptionsWithCursorToSQL interpolated the caller-supplied sort/order key into the SQL ORDER BY clause without an allowlist, so an authenticated user with read access to Activity could order results by arbitrary columns. The impact is read-only and bounded to columns on the activity_past table that are not otherwise returned in these responses (e.g. details), allowing their values to be inferred through the resulting sort order; there is no write access, privilege escalation, or reachability of node_key or other host-join columns through these endpoints. Fixed in 4.89.0, which removes the deprecated helper and passes the sort column through SanitizeColumn.
Vulnerability class: SQL Injection
Published .
CVSS v3 metric
CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/fleetdm/fleet/security/advisories/GHSA-rxhg-vcww-2mpw (vendor-advisory)
- www.vulncheck.com/advisories/fleet-before-4.89.0-sql-injection-via-order-by-act… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-101046?
- CVE-2026-101046 is a low-severity vulnerability in Fleetdm Fleet, classified under SQL Injection. CVSS score: 3.1/10. Published 2026-09-27.
- How severe is CVE-2026-101046?
- Low severity. CVSS v3 base score is 3.1 out of 10.