Drupal Core SQL Injection Vulnerability
Drupal Core contains a SQL injection vulnerability that could allow for privilege escalation and remote code execution via specially crafted requests sent with the database abstraction API.
Quick answer
Drupal Core should be reviewed and updated if it matches the affected versions. The recommended fix is to apply the vendor-supported patched version or the mitigation steps below, then retest the public website with Fixnx.
Who is affected
Affected versions
- Review vendor advisory for affected versions.
Fixed versions
- Apply the latest vendor-supported patched version.
How to fix it
Apply the Drupal core security release from SA-CORE-2026-004 and rebuild caches. Drupal core issues should be patched through Composer or the official update process, followed by review of custom modules and logs for exploitation signs.
- Identify every Drupal site, multisite, staging environment, and composer-managed codebase using the affected core line.
- Update Drupal core to the fixed version listed in SA-CORE-2026-004 using Composer or the official Drupal update process.
- Run database updates, clear Drupal caches, and rebuild configuration after deploying the fixed core release.
- Update contributed modules and themes that depend on the affected core behavior.
- Review custom modules, routes, forms, file handling, and permissions that may increase exposure.
- Inspect web server, Drupal watchdog, authentication, and admin activity logs from the vulnerable window.
- Rotate privileged Drupal accounts, API keys, and deployment credentials if suspicious activity is found.
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Verify the fix
- Confirm Drupal reports the fixed core version on every environment.
- Run Drupal database update status and ensure no pending security update remains.
- Check cache rebuild, cron, login, content editing, and public form workflows after deployment.
- Review logs for exploit attempts, unexpected users, changed roles, or modified PHP files.
- Run a Fixnx scan against the public Drupal site and verify no affected version signal remains.
Related categories
Trusted references
FAQ
What is affected by CVE-2026-9082?
Drupal Core should be checked against the vendor advisory and trusted references linked on this page.
What should I fix first?
Start with internet-facing sites, admin panels, login flows, plugins, themes, modules, packages, and systems that process user-controlled input or sensitive data.
How do I confirm the fix worked?
Apply the patched version or mitigation, clear caches where relevant, retest the affected workflow, and run a new Fixnx scan to verify public website exposure signals.
Why can this risk appear in multiple categories?
A vulnerability can belong to more than one platform or ecosystem. Fixnx keeps one canonical risk page while also listing it in every relevant category.