League CommonMark Files

This is a security release to address a denial of service vulnerability in the Table extension and a raw HTML filtering bypass in the DisallowedRawHtml extension.

Changed

• Improved performance of parsing table delimiter rows and splitting table rows into cells by scanning bytes directly instead of stepping a Cursor (roughly 4x faster for delimiter rows and 6x for cell splitting, and more on multibyte rows)

Fixed

• Fixed DisallowedRawHtmlRenderer not blocking raw HTML that ends with a disallowed tag name, such as a line containing only <script (GHSA-97jj-33gv-5xf9)
• Fixed quadratic-time parsing of long paragraphs when the Table extension is enabled (GHSA-3q6v-r5mr-hxv8)
• Fixed table detection to match the GFM spec and reference implementation:
• Header rows no longer require a | character
• Header rows must now have the same number of cells as the delimiter row (previously, fewer cells were accepted)

Full Changelog: https://github.com/thephpleague/commonmark/compare/2.10.1...2.10.2