GHSA-JFM3-95JQ-Q3RF league/commonmark: Denial of service via duplicate footnote definitions

Impact The Footnote extension records one backref per footnote reference and then appends the entire backref list for every footnote definition block in the document, without ever de-duplicating or removing repeated definitions of the same label GatherFootnotesListener, populated by...

league/commonmark: Denial of service via duplicate footnote definitions

Impact The Footnote extension records one backref per footnote reference and then appends the entire backref list for every footnote definition block in the document, without ever de-duplicating or removing repeated definitions of the same label GatherFootnotesListener, populated by...