markdown-it vulnerabilities

Browse known CVEs and advisories by package and ecosystem. Severity tells you the worst case. What determines real risk is whether the vulnerable code actually runs in your applications.

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CVE-IDSeverityPackage summary

CVE-2026-48988Mediummarkdown-it: markdown-it: Quadratic complexity DoS in smartquotes rule via replaceAt string operations CVE-2026-2327Mediummarkdown-it: markdown-it is has a Regular Expression Denial of Service (ReDoS)CVE-2015-10005Highmarkdown-it: markdown-it vulnerable to Inefficient Regular Expression Complexity CVE-2022-21670Mediummarkdown-it: Uncontrolled Resource Consumption in markdown-it

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