RUSTSEC-2026-0297

Vulnerability from osv_rustsec – Published: 2026-09-09 12:00 – Updated: 2026-09-21 15:17 – Source website
VLAI
Summary
`unzip`: archive extraction is vulnerable to path traversal (zip-slip)
Details

Summary

Unzipper::unzip extracts each archive entry to a path built from the entry's raw, attacker-controlled name without any traversal check. A ZIP archive whose entry names contain ../ components (or an absolute path) can therefore cause files to be written outside the destination directory chosen by the caller — a "zip-slip" / directory-traversal arbitrary file write (CWE-22 / CWE-23 / CWE-36).

Affected versions

All published versions are affected. unzip has only ever released 0.1.0 (published 2017-12-23) and appears unmaintained, so no fixed version is available.

Proof of concept

A malicious archive with a single entry named ../ESCAPED.txt extracted via Unzipper::unzip writes ESCAPED.txt one level above the destination directory.

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "categories": [
          "code-execution"
        ],
        "cvss": null,
        "informational": null
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [
            "unzip::Unzipper::unzip"
          ],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "unzip",
        "purl": "pkg:cargo/unzip"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "### Summary\n\n`Unzipper::unzip` extracts each archive entry to a path built from the entry\u0027s\n**raw, attacker-controlled name** without any traversal check. A ZIP archive whose\nentry names contain `../` components (or an absolute path) can therefore cause\nfiles to be written **outside** the destination directory chosen by the caller \u2014\na \"zip-slip\" / directory-traversal arbitrary file write (CWE-22 / CWE-23 /\nCWE-36).\n\n### Affected versions\n\nAll published versions are affected. `unzip` has only ever released `0.1.0`\n(published 2017-12-23) and appears unmaintained, so **no fixed version is\navailable**.\n\n### Proof of concept\n\nA malicious archive with a single entry named `../ESCAPED.txt` extracted via\n`Unzipper::unzip` writes `ESCAPED.txt` one level above the destination directory.",
  "id": "RUSTSEC-2026-0297",
  "modified": "2026-09-21T15:17:02Z",
  "published": "2026-09-09T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/unzip"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2026-0297.html"
    },
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/unzip"
    }
  ],
  "related": [],
  "severity": [],
  "summary": "`unzip`: archive extraction is vulnerable to path traversal (zip-slip)"
}



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