| Package | Affected versions | Patched versions |
|---|---|---|
| kramdown | ≥ 1.16.0, < 2.3.1 | 2.3.1 |
| kramdown | < 2.3.1 | 2.3.1 |
Kramdown before 2.3.1 does not restrict Rouge formatters to the Rouge::Formatters namespace, and thus arbitrary classes can be instantiated.
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