Sanitize-html Vulnerable To REDoS Attacks

Description

The package sanitize-html before 2.7.1 are vulnerable to Regular Expression Denial of Service (ReDoS) due to insecure global regular expression replacement logic of HTML comment removal.

Recommendation

Update the sanitize-html package to the latest compatible version. Followings are version details:

• Affected version(s): < 2.7.1
• Patched version(s): 2.7.1

References

• GHSA-cgfm-xwp7-2cvr
• security.snyk.io
• CVE-2022-25887
• CWE-1333
• CAPEC-310
• OWASP 2021-A6

Related Issues

• sanitize-html is vulnerable to XSS through incomprehensive sanitization - CVE-2019-25225
• Apostrophe has default XSS via `xmp` raw-text passthrough in `sanitize-html` - CVE-2026-44990
• html-parse-stringify and html-parse-stringify2 vulnerable to Regular expression denial of service (ReDoS) - CVE-2021-23346
• LiquidJS Vulnerable to ReDoS via Quadratic Backtracking in `strip_html` Filter Regex - CVE-2026-45617

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10 Secure Coding Best Practices to Follow in Every Project

Tags:

npm

sanitize-html