Uncontrolled Resource Consumption in markdown-it

Description

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

Recommendation

Update the markdown-it package to the latest compatible version. Followings are version details:

• Affected version(s): < 12.3.2
• Patched version(s): 12.3.2

References

• GHSA-6vfc-qv3f-vr6c
• CVE-2022-21670
• CWE-1333
• CWE-400
• CAPEC-310
• OWASP 2021-A6

Related Issues

• Uncontrolled Resource Consumption in node-opcua - CVE-2022-21208
• Cattown is Vulnerable to Uncontrolled Resource Consumption through Inefficient Regular Expression Complexity - CVE-2025-58451
• Uncontrolled Resource Consumption in firebase - CVE-2020-7765
• graphql Uncontrolled Resource Consumption vulnerability - CVE-2023-26144

Tags:

npm

markdown-it