All vulnerabilities

CVE-2026-55803

Packagist · drupal/core

Summary

[SA-CORE-2019-003](https://www.drupal.org/sa-core-2019-003) added protection for fields that store serialized data to disallow direct writes via web services. The above fix did not cover all potential attack vectors for JSON:API. An attacker with appropriate JSON:API write permission could potentia

References