markdown-it_project 関連製品全体の CVE とセキュリティ脆弱性情報を集約し、CVSS、EPSS、公開日、脆弱性情報データを掲載しています。
公開された問題は vendor risk cross-site scripting and vendor risk denial of service に関連することが多く、vendor surface software deployment and vendor surface production workloads の文脈で vendor impact session compromise などの暴露リスクを伴う場合があります。
掲載データは公開脆弱性情報とセキュリティ公告に基づき、過去の暴露面と修補優先度の評価に利用できます。
| CVE | 概要 | ソース | CVSS 最大値 | EPSS（%） | 公開 | 更新 |
|---|---|---|---|---|---|---|
| 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. | [email protected] | 5.5 | 0.50% | 2026-02-12 | 2026-02-23 |
| CVE-2025-7969 | 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. | [email protected] | 6.9 | 0.23% | 2025-08-21 | 2025-12-22 |
| CVE-2015-10005 | A vulnerability was found in markdown-it up to 2.x. It has been classified as problematic. Affected is an unknown function of the file lib/common/html_re.js. The manipulation leads to inefficient regular expression complexity. Upgrading to version 3.0.0 is able to address this issue. The name of the patch is 89c8620157d6e38f9872811620d25138fc9d1b0d. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-216852. | [email protected] | 3.5 | 0.95% | 2022-12-27 | 2024-11-21 |
| CVE-2022-21670 | 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. | [email protected] | 5.3 | 2.15% | 2022-01-10 | 2024-11-21 |
| CVE-2015-3295 | markdown-it before 4.1.0 does not block data: URLs. | [email protected] | 5.3 | 1.29% | 2017-06-07 | 2026-05-13 |