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CVE-2021-43838

Regular Expression Denial of Service (ReDoS) in jsx-slack PUBLISHED

Description (CNA)

jsx-slack is a library for building JSON objects for Slack Block Kit surfaces from JSX. In versions prior to 4.5.1 users are vulnerable to a regular expression denial-of-service (ReDoS) attack. If attacker can put a lot of JSX elements into `<blockquote>` tag, an internal regular expression for escaping characters may consume an excessive amount of computing resources. jsx-slack v4.5.1 has patched to a regex for escaping blockquote characters. Users are advised to upgrade as soon as possible.

Affected (CNA)

Vendor / productVersions
yhatt / jsx-slackaffected < 4.5.1

CWE

CWE-400

References

ADP enrichment

CVE

No English description supplied.