high7.5
CVE-2026-115347
Mistune before 3.3.0 contains an inefficient algorithmic complexity vulnerability in parse_link_text that allows remote attackers to cause denial of service th…
Impact
Mistune before 3.3.0 contains an inefficient algorithmic complexity vulnerability in parse_link_text that allows remote attackers to cause denial of service through unbalanced square brackets. Attackers can submit markdown containing long runs of unmatched brackets to mistune.html(), triggering repeated forward scans that stall worker processes for minutes.
Affected products
| Product | Affected versions |
|---|---|
| Mistune | before 3.3.0 |
Versions were read from the advisory text. No structured product data has been published for this record yet.