Vulnerabilities in pkg:golang/github.com/fleetdm/fleet/v4

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-rxhg-vcww-2mpw",
  "modified" : "2026-08-20T18:44:36Z",
  "published" : "2026-08-20T18:44:36Z",
  "aliases" : [ ],
  "summary" : "Fleet: ORDER BY column injection on activity list endpoints",
  "details" : "### Summary\n\nAn authenticated user with read access to Activity could influence the `ORDER BY` clause of the activity list endpoints by supplying an arbitrary sort column:\n\n- `GET /api/v1/fleet/activities` (`ListActivities`)\n- `GET /api/v1/fleet/hosts/{id}/activities` (`ListHostPastActivities`)\n\nThis originated from the deprecated cursor-pagination helper (`appendListOptionsWithCursorToSQL`), which interpolated the caller-supplied order key into SQL without an allowlist. The original report's `node_key` extraction scenario (`/api/v1/fleet/labels/{id}/hosts`) was remediated separately in #44385; these two activity endpoints were the residual call sites, neither of which joins the `hosts` table, so `node_key` was never reachable through them.\n\n### Impact\n\nRead-only. Because the order key was interpolated, an authenticated user with Activity read could sort by columns not otherwise returned in these responses. The exposure was bounded to columns on `activity_past` (e.g. `details` on `/api/v1/fleet/activities`, which is not in that endpoint's SELECT; host-only activities are already excluded by `WHERE host_only = false`). There is no privilege escalation, write access, or reachability of `node_key` or other host-join columns through these endpoints.\n\n### Remediation\n\nThe deprecated helper was removed from the codebase. Both endpoints now pass the caller-supplied sort column through `SanitizeColumn`, which strips all characters except `[\\w-.]` and backtick-quotes each identifier segment. This closes the injection vector: separators, whitespace, parentheses, and quotes cannot survive sanitization, so an expression-based `ORDER BY` oracle is not constructable.\n\n### Affected versions\n\n`< fleet-v4.89.0`. Fixed in `fleet-v4.89.0`.\n\n### Credit\n\nThanks to @axel-corsiez for the report.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/fleetdm/fleet/v4"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "4.89.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/fleetdm/fleet/security/advisories/GHSA-rxhg-vcww-2mpw"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/fleetdm/fleet"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/fleetdm/fleet/releases/tag/fleet-v4.89.0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-89" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-08-20T18:44:36Z",
    "nvd_published_at" : null
  }
}