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CVE-2021-21306

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Date: February 8, 2021

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.

Language: JS

Severity Score

Related Resources (7)

https://github.com/markedjs/marked/security/advisories/GHSA-4r62-v4vq-hr96
https://github.com/markedjs/marked/commit/7293251c438e3ee968970f7609f1a27f9007bccd
https://www.npmjs.com/package/marked
https://github.com/markedjs/marked/issues/1927
https://nvd.nist.gov/vuln/detail/CVE-2021-21306
https://github.com/markedjs/marked/pull/1864
https://www.mend.io/vulnerability-database/CVE-2021-21306

Severity Score

Weakness Type (CWE)

Uncontrolled Resource Consumption ('Resource Exhaustion')

CWE-400

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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