CVE-2021-28834: Code Injection

March 19, 2021 (updated November 7, 2023)

Kramdown does not restrict Rouge formatters to the Rouge::Formatters namespace, and thus arbitrary classes can be instantiated.

References

nvd.nist.gov/vuln/detail/CVE-2021-28834

Code Behaviors & Features

Detect and mitigate CVE-2021-28834 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →