CVE-2026-47110

Summary

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 Software

Weaknesses

• CWE-241: Improper Handling of Unexpected Data Type

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://github.com/ueberdosis/tiptap-php/releases/tag/2.1.1
• https://github.com/ueberdosis/tiptap-php/pull/94
• https://github.com/ueberdosis/tiptap-php/commit/74bfb7be1c8c6102b240f3879b7f984a6ab87b97
• https://www.vulncheck.com/advisories/tiptap-for-php-dos-via-malformed-href-attribute

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