CVE-2022-21670

ADVISORY - github

Summary

Impact

Special patterns with length > 50K chars can slow down parser significantly.

const md = require('markdown-it')();

md.render(`x ${' '.repeat(150000)} x  \nx`);

Patches

Upgrade to v12.3.2+

Workarounds

No.

References

Fix + test sample: https://github.com/markdown-it/markdown-it/commit/ffc49ab46b5b751cd2be0aabb146f2ef84986101

EPSS Score: 0.01114 (0.785)

Common Weakness Enumeration (CWE)

ADVISORY - nist

Inefficient Regular Expression Complexity

Uncontrolled Resource Consumption

ADVISORY - github

Inefficient Regular Expression Complexity

Uncontrolled Resource Consumption

ADVISORY - gitlab

OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities

Inefficient Regular Expression Complexity

OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities


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