cargo package report

Is better-macro safe?

1 known vulnerability, worst severity HIGH.

// 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
      0.0
      high

      severity band, no base score published

      epss
      0.00%
      medium

      chance of exploitation in 30 days, 85th percentile of all CVEs

      xyz score
      0.0
      low

      CyberXYZ composite out of 10

      fig. 01 — GHSA-79wf-qcqv-r22r, the advisory selected below

      // 1 advisories

      GHSA-79wf-qcqv-r22r

      HIGHCVE-2021-38196

      An issue was discovered in the better-macro crate through 2021-07-22 for Rust. It intentionally demonstrates that remote attackers can execute arbitrary code via proc-macros, and otherwise has no legitimate purpose.

      // cvss v3.1 vector

      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

      Attack vector
      Network
      Attack complexity
      Low
      Privileges required
      None
      User interaction
      None
      Scope
      Unchanged
      Confidentiality
      High
      Integrity
      High
      Availability
      High

      Checked 2026-09-28 at 19:48 UTC. The most recent advisory here was published 2021-08-25. Updated continuously from NVD, GHSA, OSV and CNA feeds.

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