{
  "affected": [
    {
      "database_specific": {
        "categories": [
          "memory-corruption"
        ],
        "cvss": null,
        "informational": null,
        "source": "https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2026-0292.json"
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [
            "imbl_sized_chunks::inline_array::InlineArray::clear",
            "imbl_sized_chunks::inline_array::InlineArray::truncate",
            "imbl_sized_chunks::sized_chunk::Chunk::clear",
            "imbl_sized_chunks::sized_chunk::Chunk::drop_left",
            "imbl_sized_chunks::sized_chunk::Chunk::drop_right"
          ],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "imbl-sized-chunks",
        "purl": "pkg:cargo/imbl-sized-chunks"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            },
            {
              "fixed": "0.2.0"
            }
          ],
          "type": "SEMVER"
        }
      ]
    }
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "`Chunk::{clear, drop_left, drop_right}` and `InlineArray::{clear, truncate}` drop the removed elements before updating the metadata that records which slots hold live values — the `left`/`right` index pair for `Chunk`, the length field for `InlineArray`. If an element's `Drop` panics during the drop, that update is never reached, so the collection still treats the already-dropped elements as live. When the collection is later dropped (its destructor walks the range described by the stale metadata), or a subsequent operation touches the same slots, those elements are dropped a second time — a double free (CWE-415) / use-after-free (CWE-416) reachable from safe Rust.\n\nThe stale field is `left` and `right` for `Chunk::clear`, `left` for `drop_left`, `right` for `drop_right`, and the length field for both `InlineArray` methods.\n\n## Mitigation\n\nUpgrade to `imbl-sized-chunks` 0.2.0 or later, which commits the metadata before dropping any element (fixed in jneem/imbl-sized-chunks#14, released in 0.2.0).",
  "id": "RUSTSEC-2026-0292",
  "modified": "2026-09-21T09:15:02.898993962Z",
  "published": "2026-09-04T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/imbl-sized-chunks"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2026-0292.html"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jneem/imbl-sized-chunks/pull/14"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "Double free / use-after-free in `Chunk` and `InlineArray` removal methods when an element's `Drop` panics"
}