cargo package report

Is cpython safe?

1 known vulnerability.

// reach

0 direct dependencies

none carry a known advisory

    0 packages depend on it

    an advisory here reaches each of them

      Create a free accountfor every dependency path, dependent and what to upgrade
      // ai model usage

      Tracked for PyPI packages. HuggingFace models declare Python dependencies, so cargo packages are not covered.

      cvss
      not scored

      severity out of 10

      epss
      not scored

      chance of exploitation in 30 days

      xyz score
      not scored

      CyberXYZ composite out of 10

      fig. 01 — RUSTSEC-2023-0076, the advisory selected below

      // 1 advisories

      RUSTSEC-2023-0076

      UNKNOWN

      The cpython crate and the underlying python3-sys and python27-sys crates have been marked as [no longer actively maintained] by the developer.

      There are also open issues for unsound code that is currently in these crates:

      • [cpython#265]: Using some string functions causes segmentation faults on big-endian architectures. Due to incorrect bitfield manipulations, it is possible to create invalid Python objects that crash the Python interpreter.
      • [cpython#294]: Python 3.12 is not supported. Due to ABI changes in Python 3.12, calling some string functions will result in invalid Python objects and / or cause out-of-bounds memory accesses.
      // recommended alternatives
      • [pyo3] (version 0.19.2 and newer)

      The pyo3 crate is actively maintained. Preliminary support for Python 3.12 was added in version 0.19.2, and version 0.20.0 was released with full support for Python 3.12.

      Both versions implement string functions correctly on big-endian architectures. The endianness issue affecting the cpython crate was fixed in recent versions of pyo3.

      [no longer actively maintained]: https://github.com/dgrunwald/rust-cpython/commit/e815555 [cpython#265]: https://github.com/dgrunwald/rust-cpython/issues/265 [cpython#294]: https://github.com/dgrunwald/rust-cpython/issues/294 [pyo3]: https://crates.io/crates/pyo3

      Checked 2026-10-04 at 01:07 UTC. The most recent advisory here was published 2023-11-14. Updated continuously from NVD, GHSA, OSV and CNA feeds.

      Think a verdict here is wrong? Tell us — we respond within 2 business days.