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CVE-2021-21306— Denial of Service in Marked

Quick assessment

Affected
markedjs marked
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

marked是美国Christopher Jeffrey个人开发者的一款使用JavaScript编写的Markdown解析器和编译器。 Marked 1.1.1及2.0.0之前版本中存在资源管理错误漏洞，该漏洞可以影响任何通过标记运行用户生成代码的用户。

CVSS 5.3 · Medium EPSS 2.46% · P84

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2021-21306

Vulnerability Information
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Vulnerability Title
Denial of Service in Marked
Source: CVE Program / CVE List V5
Vulnerability Description
Marked is an open-source markdown parser and compiler (npm package "marked"). In marked from version 1.1.1 and before version 2.0.0, there is a Regular expression Denial of Service vulnerability. This vulnerability can affect anyone who runs user generated code through marked. This vulnerability is fixed in version 2.0.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
marked 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
marked是美国Christopher Jeffrey个人开发者的一款使用JavaScript编写的Markdown解析器和编译器。 Marked 1.1.1及2.0.0之前版本中存在资源管理错误漏洞，该漏洞可以影响任何通过标记运行用户生成代码的用户。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
markedjs marked >= 1.1.1, < 2.0.0 -

II. Public POCs for CVE-2021-21306

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III. Intelligence Information for CVE-2021-21306

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Patches & Fixes for CVE-2021-21306 (2)

Vendor Advisories for CVE-2021-21306 (1)

Other References for CVE-2021-21306 (2)

IV. Related Vulnerabilities

Same product: marked
Same vendor: markedjs
Same weakness: CWE-400

V. Comments for CVE-2021-21306

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