Filtered by vendor Markdown-it Subscriptions
Filtered by product Markdown-it Subscriptions
Total 3 CVE
CVE Vendors Products Updated CVSS v3.1
CVE-2026-48988 1 Markdown-it 1 Markdown-it 2026-06-18 5.3 Medium
markdown-it is a Markdown parser. Versions 14.1.1 and below contain a denial-of-service vulnerability when typographer: true is enabled, due to quadratic (O(n^2)) processing in the smartquotes rule. The issue stems from repeatedly modifying strings with replaceAt(), which performs O(n) slicing and concatenation per quote character. This can cause excessive CPU consumption when parsing quote-heavy, user-supplied markdown and may let attackers degrade or disrupt service availability. Although typographer is disabled by default, many production apps enable it for smart typography, making the issue relevant. This issue has been fixed in version 14.2.0.
CVE-2026-2327 2 Markdown-it, Markdown-it Project 2 Markdown-it, Markdown-it 2026-04-17 5.3 Medium
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.
CVE-2025-7969 2 Markdown-it, Markdown-it Project 2 Markdown-it, Markdown-it 2025-12-22 6.1 Medium
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in markdown-it allows Cross-Site Scripting (XSS). This vulnerability is associated with program files lib/renderer.mjs. This issue affects markdown-it: 14.1.0. NOTE: the Supplier does not consider this issue to be a vulnerability.