An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the markdown-link-extractor npm package, when an attacker is able to supply arbitrary input to the module's exported function
CVSS 3.1HIGH 7.5·Network·No auth·No interaction·EPSS 0.01097·Published 2022-06-01·Fixed in 3.0.2, 4.0.1CWE-1333