RUSTSEC-2026-0427

Vulnerability from osv_rustsec – Published: 2026-10-29 12:00 – Updated: 2026-10-30 11:12 – Source website
VLAI
Summary
`sn-releases`: `extract_release_archive` writes archive entries without a path-traversal check (zip-slip)
Details

SafeReleaseRepoActions::extract_release_archive builds each output path from the raw archive entry name and writes to it with no traversal check, so a malicious release archive can create directories and write files outside the destination directory, a "zip-slip" / path traversal (CWE-22 / CWE-23).

In src/lib.rs (extract_release_archive, zip branch):

let mut file = archive.by_index(i)?;
let out_path = dest_dir_path.join(file.name());   // file.name() is the raw entry name
if file.name().ends_with('/') {
    std::fs::create_dir_all(&out_path)?;          // no `..` check
} else {
    let mut outfile = std::fs::File::create(&out_path)?;   // writes outside dest
    std::io::copy(&mut file, &mut outfile)?;
}

The crate is unmaintained (latest release 0.3.1, 2024-10-22) and no fixed version is available.

Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "categories": [
          "code-execution"
        ],
        "cvss": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
        "informational": null
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [
            "sn_releases::SafeReleaseRepoActions::extract_release_archive"
          ],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "sn-releases",
        "purl": "pkg:cargo/sn-releases"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "`SafeReleaseRepoActions::extract_release_archive` builds each output path from the **raw archive entry name** and writes to it with no traversal check, so a malicious release archive can create directories and write files **outside** the destination directory, a \"zip-slip\" / path traversal (CWE-22 / CWE-23).\n\nIn `src/lib.rs` (`extract_release_archive`, zip branch):\n\n```rust\nlet mut file = archive.by_index(i)?;\nlet out_path = dest_dir_path.join(file.name());   // file.name() is the raw entry name\nif file.name().ends_with(\u0027/\u0027) {\n    std::fs::create_dir_all(\u0026out_path)?;          // no `..` check\n} else {\n    let mut outfile = std::fs::File::create(\u0026out_path)?;   // writes outside dest\n    std::io::copy(\u0026mut file, \u0026mut outfile)?;\n}\n```\n\nThe crate is unmaintained (latest release 0.3.1, 2024-10-22) and no fixed version is available.",
  "id": "RUSTSEC-2026-0427",
  "modified": "2026-10-30T11:12:39Z",
  "published": "2026-10-29T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/sn-releases"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2026-0427.html"
    },
    {
      "type": "WEB",
      "url": "https://github.com/maidsafe/sn-releases"
    }
  ],
  "related": [],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "`sn-releases`: `extract_release_archive` writes archive entries without a path-traversal check (zip-slip)"
}



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