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CVE-2026-65903

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-65903

Severity

Unknown
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Summary

DOMPurify before 3.4.0 ADD_TAGS Function Bypasses FORBID_TAGS

Description

DOMPurify before 3.4.0 contains a logic error in the ADD_TAGS function where short-circuit evaluation allows forbidden tags to bypass FORBID_TAGS restrictions. Attackers can craft input containing tags listed in FORBID_TAGS that are also added via ADD_TAGS function, causing them to be retained in sanitized output.

References

Affected packages

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