CVE-2026-2327
Medium
Description
Versions of the package markdown-it from 13.0.0 and before 14.1.1 are vulnerable to Regular Expression Denial of Service (ReDoS) due to the use of the regex /\*+$/ in the linkify function. An attacker can supply a long sequence of * characters followed by a non-matching character, which triggers excessive backtracking and may lead to a denial-of-service condition.
SeverityMedium
CVSS5.3
Exploit probability—
ProductMarkdown-it
PublishedFeb 12, 2026
First seenFeb 12, 2026
Weakness typeCWE-1333CWE-1333
How to fix
Update
- markdown-it_project markdown-it14.1.1 or later
- markdown-it14.1.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| markdown-it_project markdown-it | 13.0.0 ≤ v < 14.1.1 | 14.1.1 |
| markdown-itnpm | 13.0.0 ≤ v < 14.1.1 | 14.1.1 |
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