Fleet before 4.89.0 SQL Injection via ORDER BY Activity Endpoints

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.

Problem type

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Affected products

fleetdm

fleet

< 4.89.0 - AFFECTED

4.89.0 - UNAFFECTED

References

GitHub Security Advisory (GHSA-rxhg-vcww-2mpw)

https://github.com/fleetdm/fleet/security/advisories/GHSA-rxhg-vcww-2mpw

vendor-advisory

VulnCheck Advisory: Fleet before 4.89.0 SQL Injection via ORDER BY Activity Endpoints

https://www.vulncheck.com/advisories/fleet-before-4.89.0-sql-injection-via-order-by-activity-endpoints

third-party-advisory

JSON source

https://cveawg.mitre.org/api/cve/CVE-2026-101046

Click to expand

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    "assignerShortName": "VulnCheck",
    "dateUpdated": "2026-09-27T17:02:35.154Z",
    "dateReserved": "2026-09-27T15:48:49.472Z",
    "datePublished": "2026-09-27T17:02:35.154Z",
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        "dateUpdated": "2026-09-27T17:02:35.154Z"
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      "datePublic": "2026-08-11T00:00:00.000Z",
      "title": "Fleet before 4.89.0 SQL Injection via ORDER BY Activity Endpoints",
      "descriptions": [
        {
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          "value": "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."
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