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jsx-slack@4.5.1 vulnerabilities

Build JSON object for Slack Block Kit surfaces from JSX

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Direct Vulnerabilities

Known vulnerabilities in the jsx-slack package. This does not include vulnerabilities belonging to this package’s dependencies.

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Vulnerability Vulnerable Version
  • M
Regular Expression Denial of Service (ReDoS)

jsx-slack is a Build JSON object for Slack Block Kit surfaces from JSX

Affected versions of this package are vulnerable to Regular Expression Denial of Service (ReDoS). When inserting a lot of JSX elements with multibyte characters into a<blockquote> tag, an internal regular expression for escaping characters may consume an excessive amount of computing resources.

Note:: This vulnerability exists due to incomplete fix of CVE-2021-43838.

How to fix Regular Expression Denial of Service (ReDoS)?

Upgrade jsx-slack to version 4.5.2 or higher.

<4.5.2
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