CVE-2026-2327
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.
- Published Feb 12, 2026
- CVSS 5.5 medium
- 0.7% chance of exploitation in the next 30 days (EPSS)
- A fix is available
Affected software
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