Vulnerability · Published Jun 24, 2026 · Assigned by VulnCheck

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

Medium 6.5

In plain English

A medium-severity security flaw in tiptap-php from ueberdosis. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 46% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.5%top 53.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Packagist	ueberdosis/tiptap-php	2.1.1	GHSA-4595-7fjw-r3jh

Affected products (as reported)

Vendor	Product	Versions
ueberdosis	tiptap-php	0 – before 2.1.1

Weakness: CWE-241 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

Release Notes release-notes
Pull Request issue-tracking
Patch Commit patch
https://www.vulncheck.com/advisories/tiptap-for-php-dos-via-malformed-href-attribute third-party-advisory