CVE-2026-47110
CVE-2026-47110 is a medium-severity vulnerability with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-241.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- CVSS v4: 7.1
- EPSS exploit prediction: 0% (22nd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-39100
- Weakness: CWE-241
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2026-47110?
- 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.
- How severe is CVE-2026-47110?
- CVE-2026-47110 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2026-47110 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-47110?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-47110 have an EU (EUVD) identifier?
- Yes. CVE-2026-47110 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39100.
- When was CVE-2026-47110 published?
- CVE-2026-47110 was published on 2026-06-24 and last updated on 2026-06-30.
References
- https://github.com/ueberdosis/tiptap-php/commit/74bfb7be1c8c6102b240f3879b7f984a6ab87b97
- https://github.com/ueberdosis/tiptap-php/pull/94
- https://github.com/ueberdosis/tiptap-php/releases/tag/2.1.1
- https://www.vulncheck.com/advisories/tiptap-for-php-dos-via-malformed-href-attribute
Other CWE-241 vulnerabilities
- CVE-2021-40116 — High (CVSS 8.6): Multiple Cisco products are affected by a vulnerability in Snort rules that could allow an unauthenticated, remote…
- CVE-2022-39064 — High (CVSS 8.1): An attacker sending a single malformed IEEE 802.15.4 (Zigbee) frame makes the TRÅDFRI bulb blink, and if they replay…
- CVE-2025-63548 — High (CVSS 7.5): An issue in Eprosima Micro-XREC-DDS Agent v.3.0.1 allows a remote attacker to cause a denial of service via a packet…
- CVE-2025-2268 — High (CVSS 7.5): The HP LaserJet MFP M232-M237 Printer Series may be vulnerable to a denial of service attack when a specially crafted…
- CVE-2022-3029 — High (CVSS 7.5): In NLnet Labs Routinator 0.9.0 up to and including 0.11.2, due to a mistake in error handling, data in RRDP snapshot…
- CVE-2022-24668 — High (CVSS 7.5): A program using swift-nio-http2 is vulnerable to a denial of service attack caused by a network peer sending ALTSVC or…