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Status published
Medium
CVE-2022-21670
Uncontrolled Resource Consumption in markdown-it
Vulnerability Description
markdown-it is a Markdown parser. Prior to version 1.3.2, special patterns with length greater than 50 thousand characterss could slow down the parser significantly. Users should upgrade to version 12.3.2 to receive a patch. There are no known workarounds aside from upgrading.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
More from markdown-it
View All →Affected Vendor
markdown-it
View all reports →Affected Software
markdown-it
Vulnerable Versions:
< 12.3.2
Timeline
Official Publish:
January 10th, 2022
Last Modified:
April 22nd, 2025
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L