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

• Auth0 NextJS SDK v4 Missing Session Invalidation - CVE-2025-46344
• Potential DoS when using ContextLines integration - Vulnerability
• sanitize-html Information Exposure vulnerability - CVE-2024-21501
• json-schema-ref-parser Prototype Pollution issue - CVE-2024-29651

Tags:

npm

markdown-it