ETK-2026-4045Zero's internal tracking ID, independent of the CVE number.

{
  "etk_id": "ETK-2026-4045",
  "cve_id": null,
  "display_id": "ETK-2026-4045",
  "ghsa_id": "GHSA-m9c3-99x3-77g6",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "SQL injection in mysqlclient set parameter escaping",
  "summary": "mysqlclient mishandles escaping for Python set objects used as query parameters when the MySQL session enables NO_BACKSLASH_ESCAPES. An attacker may inject SQL if they can supply unvalidated values that an application passes in such a set parameter.",
  "mitigation": "Upgrade mysqlclient to version 2.3.1 or later. Until upgraded, avoid passing untrusted Python set values as query parameters and disable NO_BACKSLASH_ESCAPES where feasible.",
  "vendor": "pip",
  "product": "pip:mysqlclient",
  "affected": [
    {
      "affected_notes": [
        "=< 2.3.0"
      ],
      "affected_ranges": [],
      "ecosystem": "pip",
      "fixed_versions": [
        "2.3.1"
      ],
      "package_name": "mysqlclient",
      "purl": "pkg:pypi/mysqlclient"
    }
  ],
  "cwes": [
    89
  ],
  "cvss_score": 9.2,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 9.6271813,
  "t0_at": null,
  "signals": {
    "trigger_signal": {
      "at": "2026-11-10T10:22:59+00:00",
      "days": -0.5929102586689815,
      "is_lower_bound": true,
      "measured_at": "2026-11-11T00:36:46.487163+00:00",
      "url": "https://github.com/PyMySQL/mysqlclient/security/advisories/GHSA-m9c3-99x3-77g6"
    }
  }
}