CVE-2026-48801

Linkify-it (linkify-it) prior to version 5.0.1 has an O(N^2) scan loop in LinkifyIt.prototype.match, making inputs with many fuzzy links or emails vulnerable to resource exhaustion on a request hot path that renders untrusted Markdown with linkify: true. The issue arises from re-slicing input and...

CVE-2026-59887

The CVE concerns the linkify-it library. The mailto: schema validator (used by .test()/.match()) could, before version 5.0.2, be invoked for each mailto occurrence and scan the remaining input through src_email_name in lib/re.mjs, causing O(n^2) CPU consumption (DoS) on crafted text. Impact is hi...