CVE-2023-5256: Drupal

High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days.

In certain scenarios, Drupal's JSON:API module will output error backtraces. With some configurations, this may cause sensitive information to be cached and made available to anonymous users, leading to privilege escalation. This vulnerability only affects sites with the JSON:API module enabled, and can be mitigated by uninstalling JSON:API. The core REST and contributed GraphQL modules are not affected.

Affected products

• Drupal Drupal: from 8.7.0, before 9.5.11 (fixed in 9.5.11); from 10.0.0, before 10.0.11 (fixed in 10.0.11); from 10.1.0, before 10.1.4 (fixed in 10.1.4)

Published 2023-09-28. Last modified 2026-06-17.