rustsec-2026-0434

CVSS 8.2 osv_rustsec
Description

`ant-releases` downloads and unpacks release archives from the `safe_network` / `autonomi` repositories. When it extracts an archive, it builds each output path by joining the archive entry's **own name** onto the destination directory, with no check for `..` or absolute components — a classic "zip-slip" path traversal (CWE-22 / CWE-23). A crafted archive can therefore create or overwrite files outside the intended extraction directory. In `extract_release_archive` (`src/lib.rs`), the ZIP branch does: ```rust let out_path = dest_dir_path.join(file.name()); // raw zip entry name, no containment check if file.name().ends_with('/') { std::fs::create_dir_all(&out_path)?; // dir created outside dest_dir } else { let mut outfile = std::fs::File::create(&out_path)?; // file written outside dest_dir std::io::copy(&mut file, &mut outfile)?; } ``` ## Proof of concept A one-entry ZIP whose entry name is `../foo_pwned.txt`, passed to `AntReleaseRepoActions::extract_release_archive` (obtained via the crate's public `<dyn AntReleaseRepoActions>::default_config()`), writes `foo_pwned.txt` as a sibling of the destination directory, outside it. Confirmed against the published `0.4.3` crate.

Timeline
Published
unknown
Last Modified
unknown
CVSS Details

CVSS details not available.

Affected Products

No product information available.

References
Linked Vulnerabilities

No linked vulnerabilities found.

{
  "affected": [
    {
      "database_specific": {
        "categories": [
          "code-execution"
        ],
        "cvss": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N",
        "informational": null,
        "source": "https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2026-0434.json"
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [
            "ant_releases::AntReleaseRepoActions::extract_release_archive"
          ],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "ant-releases",
        "purl": "pkg:cargo/ant-releases"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            }
          ],
          "type": "SEMVER"
        }
      ]
    }
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "`ant-releases` downloads and unpacks release archives from the `safe_network` / `autonomi` repositories. When it extracts an archive, it builds each output path by joining the archive entry's **own name** onto the destination directory, with no check\nfor `..` or absolute components — a classic \"zip-slip\" path traversal (CWE-22 / CWE-23). A crafted archive can therefore create or overwrite files outside the intended extraction directory.\n\nIn `extract_release_archive` (`src/lib.rs`), the ZIP branch does:\n\n```rust\nlet out_path = dest_dir_path.join(file.name());   // raw zip entry name, no containment check\nif file.name().ends_with('/') {\n    std::fs::create_dir_all(&out_path)?;          // dir created outside dest_dir\n} else {\n    let mut outfile = std::fs::File::create(&out_path)?;   // file written outside dest_dir\n    std::io::copy(&mut file, &mut outfile)?;\n}\n```\n\n## Proof of concept\n\nA one-entry ZIP whose entry name is `../foo_pwned.txt`, passed to `AntReleaseRepoActions::extract_release_archive` (obtained via the crate's public `<dyn AntReleaseRepoActions>::default_config()`), writes `foo_pwned.txt` as a sibling of\nthe destination directory, outside it. Confirmed against the published `0.4.3` crate.",
  "id": "RUSTSEC-2026-0434",
  "modified": "2026-11-02T11:30:18.468635637Z",
  "published": "2026-10-31T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/ant-releases"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2026-0434.html"
    },
    {
      "type": "WEB",
      "url": "https://github.com/maidsafe/ant-releases"
    }
  ],
  "schema_version": "1.9.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "`ant-releases`: extracting a release archive can write files outside the destination directory (path traversal / zip-slip)"
}
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