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CVE-2021-43308

Good to know:

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Date: June 1, 2022

An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the markdown-link-extractor npm package, when an attacker is able to supply arbitrary input to the module's exported function

Language: JS

Severity Score

Related Resources (5)

https://research.jfrog.com/vulnerabilities/markdown-link-extractor-redos-xray-211350
https://github.com/tcort/markdown-link-extractor
https://research.jfrog.com/vulnerabilities/markdown-link-extractor-redos-xray-211350/
https://nvd.nist.gov/vuln/detail/CVE-2021-43308
https://www.mend.io/vulnerability-database/CVE-2021-43308

Severity Score

Weakness Type (CWE)

Inefficient Regular Expression Complexity

CWE-1333

Top Fix

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Upgrade Version

Upgrade to version markdown-link-extractor - 3.0.2;markdown-link-extractor - 4.0.1

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
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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