High

OS Command Injection in bikeshed

  • Disclosed: 16.08.2021
  • Updated: 11.10.2026 11:19

This affects the package bikeshed before 3.0.0. This can occur when an untrusted source file containing Inline Tag Command metadata is processed. When an arbitrary OS command is executed, the command output would be included in the HTML output.

Affected software

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PlatformPackageVulnerable versionsFixed in
Python (PyPI) bikeshed < 3.0.0 3.0.0

References

CVSS score 7.8/10
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-78
Platform
Python (PyPI)
Package
bikeshed
Disclosed
16.08.2021
Updated
11.10.2026 11:19

Sources and licenses

OSV / GitHub Advisory Database - PYSEC-2021-116 - PyPA Advisory Database; CC BY 4.0

OSV / GitHub Advisory Database - GHSA-87cj-px37-rc3x - CC BY 4.0

Vulnerability history: bikeshed

All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
2
First → latest
08.2021 08.2021
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • High 1
  • Medium 1

Disclosures per year

  1. 2021: 2
  2. 2022: 0
  3. 2023: 0
  4. 2024: 0
  5. 2025: 0
  6. 2026: 0
  1. Medium · 5.5 CVE-2021-23423 < 3.0.0 3.0.0
  2. OS Command Injection in bikeshed this entry
    High · 7.8 CVE-2021-23422 < 3.0.0 3.0.0

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