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PatchSiren cyber security CVE debrief

CVE-2026-96384 Drupal CVE debrief

CVE-2026-96384: The Mermaid Diagram Field module for Drupal has an access bypass vulnerability due to Incorrect Authorization, allowing Forceful Browsing. This issue affects versions from 1.0.4 to 1.0.9. Site administrators and security teams should assess exposure and prioritize remediation to prevent potential unauthorized access and disruption of site functionality. The vulnerability's impact includes potential unauthorized access to sensitive information and possible disruption of site functionality.

Vendor
Drupal
Product
Mermaid Diagram Field
CVSS
Unknown
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-22
Original CVE updated
2026-10-22
Advisory published
2026-10-22
Advisory updated
2026-10-22

Who should care

Drupal site administrators, security teams, and developers using the Mermaid Diagram Field module should assess exposure and prioritize remediation. This includes verifying configurations, applying patches or updates, and monitoring for potential exploitation attempts. The vulnerability's impact on site functionality and data access necessitates prompt attention and mitigation.

Why it matters

CVE-2026-96384 is an access bypass vulnerability in the Mermaid Diagram Field module for Drupal. Site administrators and security teams should assess exposure, verify configurations, and prioritize patching or updates to prevent potential unauthorized access and disruption of site functionality.

  • Potential unauthorized access to sensitive information
  • Possible disruption of site functionality
  • Need for verification of site-specific configurations
  • Prioritization of patching or updates for affected versions

Technical summary

The Mermaid Diagram Field module for Drupal has an Incorrect Authorization vulnerability, allowing Forceful Browsing. This issue affects versions from 1.0.4 to 1.0.9. The vulnerability arises from insufficient authorization checks, potentially leading to unauthorized access and data exposure. Site administrators should assess their exposure and apply patches or updates provided by the vendor.

Defensive priority

Drupal site administrators and security teams should prioritize assessment and remediation of the Mermaid Diagram Field vulnerability.

Recommended defensive actions

  • Assess exposure of Mermaid Diagram Field installations to the vulnerability
  • Verify if site-specific configurations or customizations affect vulnerability
  • Apply patches or updates provided by the vendor
  • Monitor for potential exploitation attempts

Evidence notes

The CVE record and source item indicate an Incorrect Authorization vulnerability in Drupal Mermaid Diagram Field, allowing Forceful Browsing. Affected versions range from 1.0.4 to 1.0.9.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-96384 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-96384

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-96384 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-96384

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental 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.