CVE-2026-47110: Ueberdosis Tiptap-PHP

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Tiptap for PHP before version 2.1.1 contains an input validation vulnerability that allows authenticated attackers to cause a denial of service by submitting Tiptap JSON with the attrs.href field set to an array instead of a string, causing an unhandled TypeError in the Link::isAllowedUri() function when passed to preg_match(). Attackers can persist malformed JSON records that permanently crash the server-side HTML rendering pipeline for all subsequent viewers of that record until the database entry is manually repaired.

Affected products

• Ueberdosis Tiptap-PHP: before 2.1.1 (fixed in 2.1.1)

Published 2026-06-24. Last modified 2026-07-14.