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    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
    Last Modified:Apr 17, 2026
    EPS:Feb 12, 2026
    EPSS Score:0.0002
    CVSS Score:5.3

    Affected Products

    Vendor
    Markdown-it
    Product
    Markdown-it
    Vendor
    Markdown-it Project
    Product
    Markdown-it

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-492 Regular Expression Exponential Blowup

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High