CVE-2026-114546 Drupal CVE debrief

Who should care

Defenders responsible for Drupal installations, especially those handling sensitive information, should assess exposure and prioritize verification of file access controls. This includes reviewing and updating the Media Alias Display module, configuring Drupal to handle non-public files, and monitoring file access and caching behavior. Security teams and vulnerability management teams should also be aware of this vulnerability and its potential impacts.

Why it matters

Defenders should care about this vulnerability as it can lead to unauthorized access to sensitive information through cached files in Drupal installations using the Media Alias Display module.

• Potential unauthorized access to sensitive information through cached files
• Need to verify file access controls and caching behavior
• Possible exposure of sensitive data to unauthorized users

Technical summary

The Drupal Media Alias Display module does not properly handle caching for files served with URL aliases, potentially allowing unauthorized access to sensitive information. This vulnerability can lead to some users accessing cached versions of files containing information they should not be able to view. The issue arises from the module's failure to set appropriate cache controls, making it essential for defenders to assess exposure and prioritize verification of file access controls, especially for sensitive information.

Defensive priority

Defenders should assess exposure and prioritize verification of file access controls, especially for sensitive information.

Recommended defensive actions

• Review and update the Media Alias Display module to the latest version
• Configure Drupal to handle non-public files using a custom or contributed module
• Monitor file access and caching behavior
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The vulnerability is mitigated if Drupal is configured to handle non-public files using a custom or contributed module providing an additional file scheme. An attacker must know to request a file previously requested by a more-privileged user, and that file must still be cached. Evidence is limited to public sources and may not cover all affected deployments. Defenders should verify file access controls and caching behavior in their specific environments.

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.