ETK-2026-3872Zero's internal tracking ID, independent of the CVE number.

{
  "etk_id": "ETK-2026-3872",
  "cve_id": null,
  "display_id": "ETK-2026-3872",
  "ghsa_id": "GHSA-7r34-rm5p-4wjv",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "NTFS alternate data stream injection in Rust zip",
  "summary": "Rust applications using affected `zip` releases to unpack untrusted ZIP files on Windows NTFS are affected. A crafted archive can cause extraction to create or change alternate data streams, including security-related metadata. Exploitation requires an application to extract an attacker-controlled archive on a Windows NTFS volume.",
  "mitigation": "Upgrade the Rust `zip` package to version 9.1.0 or later. Until upgraded, avoid extracting untrusted ZIP archives on Windows NTFS.",
  "vendor": "rust",
  "product": "rust:zip",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 9.0.5"
      ],
      "ecosystem": "rust",
      "fixed_versions": [
        "9.1.0"
      ],
      "package_name": "zip",
      "purl": "pkg:cargo/zip"
    }
  ],
  "cwes": [
    20
  ],
  "cvss_score": 7.5,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 26.612901333333333,
  "t0_at": null,
  "signals": {
    "public_poc": {
      "at": "2026-11-07T21:53:44+00:00",
      "days": -0.45361210085648146,
      "is_lower_bound": true,
      "measured_at": "2026-11-08T08:46:56.124758+00:00",
      "url": "https://github.com/zip-rs/zip2/security/advisories/GHSA-7r34-rm5p-4wjv"
    },
    "trigger_signal": {
      "at": "2026-11-07T21:53:44+00:00",
      "days": -0.45361210085648146,
      "is_lower_bound": true,
      "measured_at": "2026-11-08T08:46:56.124758+00:00",
      "url": "https://github.com/zip-rs/zip2/security/advisories/GHSA-7r34-rm5p-4wjv"
    }
  }
}