Drupal core - SA-CORE-2026-007
Drupal core ships a rebuild.php front controller that can be used to rebuild Drupal (clearing the caches and rebuilding the container) when the site is in an unexpected condition.
This script doesn't correctly check the Host header against the list of trusted host patterns. This could result in cache poisoning or a redirect to an attacker-controlled domain.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | drupal/core | < 10.5.12, >= 10.6.0, < 10.6.11, >= 11.2.0, < 11.2.14, >= 11.3.0, < 11.3.12, >= 11.0.0, < 11.1.0, >= 11.1.0, < 11.2.0 | 10.5.12, 10.6.11, 11.2.14, 11.3.12, 11.1.0, 11.2.0 |
| Drupal (core) | drupal/core | < 10.5.12, >= 10.6.0, < 10.6.11, >= 11.2.0, < 11.2.14, >= 11.3.0, < 11.3.12, >= 11.0.0, < 11.1.0, >= 11.1.0, < 11.2.0 | 10.5.12, 10.6.11, 11.2.14, 11.3.12, 11.1.0, 11.2.0 |
References
- Weakness (CWE)
-- Platform
- Composer, Drupal
- Package
drupal/core- Disclosed
- 17.06.2026
- Updated
- 11.10.2026 12:18
Sources and licenses
OSV / GitHub Advisory Database - DRUPAL-CORE-2026-007 - CC BY-SA 2.0; code GPL-2.0-or-later
Vulnerability history: drupal/core
All published vulnerabilities of this package (Drupal (core)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 165
- First → latest
- 02.2018 09.2026
- Without a fix
- 3
- Exploited in attacks
- 5
Severity breakdown
- Critical 17
- High 44
- Medium 72
- Low 6
- Unrated 26
Disclosures per year
- 2018: 4
- 2019: 14
- 2020: 12
- 2021: 11
- 2022: 61
- 2023: 6
- 2024: 36
- 2025: 8
- 2026: 13
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