ETK-2026-3618Zero's internal tracking ID, independent of the CVE number.

{
  "etk_id": "ETK-2026-3618",
  "cve_id": null,
  "display_id": "ETK-2026-3618",
  "ghsa_id": "GHSA-w577-2rfp-8gph",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "Pre-validation file overwrite in rust zip extraction",
  "summary": "rust zip 9.0.5 can modify destination files before rejecting an archive whose headers are inconsistent. An attacker able to supply a crafted archive may cause files in the extraction destination to be created, truncated, or overwritten when an application uses `ZipStreamReader` with header-consistency enforcement enabled.",
  "mitigation": "Upgrade the rust `zip` package to version 9.1.0 or later. Until upgraded, do not extract untrusted archives into directories containing files that must be preserved.",
  "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": null,
  "cvss_score": 8.1,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 17.279346,
  "t0_at": null,
  "signals": {
    "public_poc": {
      "at": "2026-11-04T17:29:55+00:00",
      "days": -1.219783074537037,
      "is_lower_bound": true,
      "measured_at": "2026-11-05T22:46:24.293558+00:00",
      "url": "https://github.com/zip-rs/zip2/security/advisories/GHSA-w577-2rfp-8gph"
    },
    "trigger_signal": {
      "at": "2026-11-04T17:29:55+00:00",
      "days": -1.219783074537037,
      "is_lower_bound": true,
      "measured_at": "2026-11-05T22:46:24.293558+00:00",
      "url": "https://github.com/zip-rs/zip2/security/advisories/GHSA-w577-2rfp-8gph"
    }
  }
}