CVE-2026-107251 Drupal CVE debrief

Who should care

Drupal site administrators, security teams, and developers who use the Entity Reference Manager module should be aware of this vulnerability and take necessary actions to mitigate it.

Why it matters

The Entity Reference Manager module for Drupal has an insufficient access restriction vulnerability, allowing users with view-only access to delete arbitrary entities and access the entity merge functionality. Drupal site administrators and security teams should verify the presence of this vulnerability and apply necessary patches or mitigations.

• Users with view-only access can delete arbitrary nodes, taxonomy terms, or media entities.
• The entity merge functionality can be accessed by users who can view content.
• Site administrators and security teams need to verify the presence of this vulnerability and apply patches or mitigations.
• Drupal installations using the Entity Reference Manager module require verification of module version and potential exposure.

Technical summary

The Entity Reference Manager module for Drupal does not sufficiently restrict access to entity management operations. Users who can view content can access the entity merge functionality and delete arbitrary nodes, taxonomy terms, or media entities. This vulnerability is particularly concerning for Drupal site administrators and security teams, as it allows users with view-only access to perform actions that could compromise the security and integrity of the system. Affected installations should prioritize verifying the presence of this vulnerability and applying necessary patches or mitigations to prevent exploitation.

Defensive priority

Drupal site administrators and security teams should prioritize verifying the presence of this vulnerability in their installations and applying the necessary patches or mitigations.

Recommended defensive actions

• Verify the presence of the Entity Reference Manager module in your Drupal installation.
• Check if the module version is less than 1.0.3 and update to 1.0.3 or later if necessary.
• Restrict access to entity management operations for users who can view content.
• Monitor for potential abuse of the entity merge functionality.
• Perform a thorough review of entity references and merges to identify potential security gaps.
• Implement additional logging and monitoring to detect suspicious activity related to entity management.
• Review and update incident response plans to address potential exploitation of this vulnerability.

Evidence notes

The CVE record and source item provide details on the vulnerability in the Entity Reference Manager module for Drupal. The module does not sufficiently restrict access to entity management operations.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.