CVE-2026-2327
MEDIUM5.3EPSS 0.02%markdown-it is has a Regular Expression Denial of Service (ReDoS)
發布日:2026/2/12修改日:2026/2/18
描述
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.
受影響套件(1)
- npm/markdown-it>= 13.0.0, < 14.1.1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P |
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
參考連結(6)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-2327
- PATCHhttps://github.com/markdown-it/markdown-it
- WEBhttps://gist.github.com/ltduc147/c9abecae1b291ede4f692f2ab988c917
- WEBhttps://github.com/markdown-it/markdown-it/blob/14.1.0/lib/rules_inline/linkify.mjs#L33
- WEBhttps://github.com/markdown-it/markdown-it/commit/4b4bbcae5e0990a5b172378e507b33a59012ed26
- WEBhttps://security.snyk.io/vuln/SNYK-JS-MARKDOWNIT-10666750