{
  "affected": [
    {
      "database_specific": {
        "categories": [],
        "cvss": null,
        "informational": "unsound"
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [
            "i_triangle::delaunay::triangle::DTriangle::neighbor_by_order",
            "i_triangle::delaunay::triangle::DTriangle::vertex_by_order"
          ],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "i_triangle",
        "purl": "pkg:cargo/i_triangle"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            },
            {
              "fixed": "0.29.0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "In affected versions, `DTriangle::neighbor_by_order` and `DTriangle::vertex_by_order` were public safe functions that accepted an\narbitrary `order` value. These functions used `order` to access fixed-size internal arrays with `get_unchecked`, without checking whether `order` was within bounds. Calling these methods with an out-of-bounds `order` could cause an out-of-bounds read from safe Rust code. This made the old APIs unsound, since safe callers could trigger undefined behavior without using `unsafe`.\n\nThe issue was fixed in version `0.29.0` as part of a broader rewrite that replaced the old triangle implementation with `IntTriangle` and removed the affected accessor methods.",
  "id": "RUSTSEC-2025-0164",
  "modified": "2026-06-23T11:22:47Z",
  "published": "2025-04-24T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/i_triangle"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2025-0164.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/iShape-Rust/iTriangle/issues/4"
    },
    {
      "type": "WEB",
      "url": "https://github.com/iShape-Rust/iTriangle/commit/13e0e9f4d5333e3a815191e5f6f402641997f91b"
    }
  ],
  "related": [],
  "severity": [],
  "summary": "`DTriangle` accessors may read out of bounds in affected versions"
}