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jsx-slack@4.5.0 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
  • L
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) if an attacker is able to insert many JSX elements into a <blockquote> tag.

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

Upgrade jsx-slack to version 4.5.1 or higher.

<4.5.1
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