CVE-2026-107263 Drupal CVE debrief

Who should care

Defenders responsible for Drupal installations using the Gutenberg module should assess exposure and verify the 'use gutenberg' permission and entity access checks. Additionally, defenders should prioritize verifying the 'use gutenberg' permission and ensuring that entity access checks are in place for editor endpoints. Defenders should also review and update the module to version 2.15.0 or later, or 3.0.7 or later, as necessary, and monitor for potential

Why it matters

The Gutenberg module for Drupal has a vulnerability that allows for insufficient entity access checks in several editor endpoints. Defenders should prioritize verifying the 'use gutenberg' permission and ensuring that entity access checks are in place for editor endpoints.

• Defenders must verify the 'use gutenberg' permission and ensure that entity access checks are in place for editor endpoints.
• Drupal installations using the Gutenberg module may be vulnerable to insufficient entity access checks.

Technical summary

The Gutenberg module for Drupal provides a new UI experience for node editing using the Gutenberg Editor library. However, the module does not sufficiently check entity access in several editor endpoints. This vulnerability is mitigated by the fact that an attacker must have a role with the 'use gutenberg' permission. The vulnerability allows for insufficient entity access checks in several editor endpoints, which can be exploited by attackers with the 'use gutenberg' permission. To address this vulnerability, defenders should prioritize verifying the 'use gutenberg' permission and ensuring that entity access checks are in place for editor endpoints.

Defensive priority

Defenders should prioritize verifying the 'use gutenberg' permission and ensuring that entity access checks are in place for editor endpoints.

Recommended defensive actions

• Verify the 'use gutenberg' permission and ensure that entity access checks are in place for editor endpoints.
• Review and update the module to version 2.15.0 or later, or 3.0.7 or later, as necessary.
• Monitor for potential exploitation attempts and adjust access controls accordingly.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.

Evidence notes

The vulnerability is described in the source item from osv_dev, which provides details about the affected module and the insufficient entity access checks. The source item notes that the module does not sufficiently check entity access in several editor endpoints. This vulnerability is mitigated by the fact that an attacker must have a role with the 'use gutenberg' permission. To verify the vulnerability, defenders should check the module version and ensure that entity access checks are in place for editor endpoints. Additionally,

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.