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TI-2026-34706 Aliases CVE-2026-47110GHSA-4595-7fjw-r3jh

Tiptap for PHP < 2.1.1 DoS via Malformed href Attribute

Priority LOW 32CWE-241Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00548 46th percentileScored 2026-11-07
Fix Fixed tiptap-php (ueberdosis): 2.1.1ueberdosis/tiptap-php (Packagist): 2.1.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ueberdosistiptap-phpbefore 2.1.12.1.1Patch availableCNA
—ueberdosis/tiptap-php (Packagist)before 2.1.12.1.1Patch availableGHSA-4595-7fjw-r3jh
  • tiptap-php Vendorueberdosis Affected before 2.1.1 Fixed in 2.1.1 Patch available CNA
  • ueberdosis/tiptap-php (Packagist) Vendor— Affected before 2.1.1 Fixed in 2.1.1 Patch available GHSA-4595-7fjw-r3jh

Remediation

  • Fix · CNA tiptap-php (ueberdosis) Fixed in 2.1.1
  • Fix · GHSA-4595-7fjw-r3jh ueberdosis/tiptap-php (Packagist) Fixed in 2.1.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-47110
  2. 2026-10-03 Alias added: GHSA-4595-7fjw-r3jh
  3. 2026-10-07 Fix available: Packagist/ueberdosis/[email protected] · GHSA-4595-7fjw-r3jh
  4. 2026-10-07 CVSS score added · GHSA-4595-7fjw-r3jh
  5. 2026-10-07 Weakness changed · GHSA-4595-7fjw-r3jh
  6. 2026-10-07 5 new references · GHSA-4595-7fjw-r3jh

References

Patch 1

Advisory 1

Other 3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences