Drupal Core has a rarely used feature, provided by an underlying library, which allows certain attributes of incoming HTTP requests to be overridden.
This functionality can be abused in a way that may cause Drupal to cache response data that it should not. This can lead to legitimate requests receiving inappropriate cached responses (cache poisoning).
This vulnerability affects the following application versions:
- Drupal 8.3.9
- Drupal 8.4.6
- Drupal 8.4.7
- Drupal 8.4.8
- Drupal 8.5.1
- Drupal 8.5.2
- Drupal 8.5.3
- Drupal 8.5.4
- Drupal 8.5.5
- Drupal 8.5.6
- Drupal 8.5.7
- Drupal 8.5.8
- Drupal 8.5.9
- Drupal 8.5.10
- Drupal 8.5.11
- Drupal 8.5.12
- Drupal 8.5.13
- Drupal 8.5.14
- Drupal 8.5.15
- Drupal 8.6.0
- Drupal 8.6.1
- Drupal 8.6.2
- Drupal 8.6.3
- Drupal 8.6.4
- Drupal 8.6.5
- Drupal 8.6.6
- Drupal 8.6.7
- Drupal 8.6.8
- Drupal 8.6.9
- Drupal 8.6.10
- Drupal 8.6.11
- Drupal 8.6.12
- Drupal 8.6.13
- Drupal 8.6.14
- Drupal 8.6.15
- Drupal 8.6.16
- Drupal 8.6.17
- Drupal 8.6.18
- Drupal 8.7.0
- Drupal 8.7.1
- Drupal 8.7.2
- Drupal 8.7.3
- Drupal 8.7.4
- Drupal 8.7.5
- Drupal 8.7.6
- Drupal 8.7.7
- Drupal 8.7.8
- Drupal 8.7.9
- Drupal 8.7.10
- Drupal 8.7.11
- Drupal 8.7.12
- Drupal 8.7.13
- Drupal 8.7.14
- Drupal 8.8.0
- Drupal 8.8.1
- Drupal 8.8.2
- Drupal 8.8.3
- Drupal 8.8.4
- Drupal 8.8.5
- Drupal 8.8.6
- Drupal 8.8.7
- Drupal 8.8.8
- Drupal 8.8.9
- Drupal 8.8.10
- Drupal 8.8.11
- Drupal 8.8.12
- Drupal 8.9.0
- Drupal 8.9.1
- Drupal 8.9.2
- Drupal 8.9.3
- Drupal 8.9.4
- Drupal 8.9.5
- Drupal 8.9.6
- Drupal 8.9.7
- Drupal 8.9.8
- Drupal 8.9.9
- Drupal 8.9.10
- Drupal 8.9.11
- Drupal 8.9.12
- Drupal 8.9.13
- Drupal 8.9.14
- Drupal 8.9.15
- Drupal 8.9.16
- Drupal 8.9.17
- Drupal 8.9.18
- Drupal 8.9.19
- Drupal 8.9.20
- Drupal 9.0.0
- Drupal 9.0.1
- Drupal 9.0.2
- Drupal 9.0.3
- Drupal 9.0.4
- Drupal 9.0.5
- Drupal 9.0.6
- Drupal 9.0.7
- Drupal 9.0.8
- Drupal 9.0.9
- Drupal 9.0.10
- Drupal 9.0.11
- Drupal 9.0.12
- Drupal 9.0.13
- Drupal 9.0.14
- Drupal 9.1.0
- Drupal 9.1.1
- Drupal 9.1.2
- Drupal 9.1.3
- Drupal 9.1.4
- Drupal 9.1.5
- Drupal 9.1.6
- Drupal 9.1.7
- Drupal 9.1.8
- Drupal 9.1.9
- Drupal 9.1.10
- Drupal 9.1.11
- Drupal 9.1.12
- Drupal 9.1.13
- Drupal 9.1.14
- Drupal 9.1.15
- Drupal 9.2.0
- Drupal 9.2.1
- Drupal 9.2.2
- Drupal 9.2.3
- Drupal 9.2.4
- Drupal 9.2.5
- Drupal 9.2.6
- Drupal 9.2.7
- Drupal 9.2.8
- Drupal 9.2.9
- Drupal 9.2.10
- Drupal 9.2.11
- Drupal 9.2.12
- Drupal 9.2.13
- Drupal 9.2.14
- Drupal 9.2.15
- Drupal 9.2.16
- Drupal 9.2.17
- Drupal 9.2.18
- Drupal 9.2.19
- Drupal 9.2.20
- Drupal 9.2.21
- Drupal 9.3.0
- Drupal 9.3.1
- Drupal 9.3.2
- Drupal 9.3.3
- Drupal 9.3.4
- Drupal 9.3.5
- Drupal 9.3.6
- Drupal 9.3.7
- Drupal 9.3.8
- Drupal 9.3.9
- Drupal 9.3.10
- Drupal 9.3.11
- Drupal 9.3.12
- Drupal 9.3.13
- Drupal 9.3.14
- Drupal 9.3.15
- Drupal 9.3.16
- Drupal 9.3.17
- Drupal 9.3.18
- Drupal 9.3.19
- Drupal 9.3.20
- Drupal 9.3.21
- Drupal 9.3.22
- Drupal 9.4.0
- Drupal 9.4.1
- Drupal 9.4.2
- Drupal 9.4.3
- Drupal 9.4.4
- Drupal 9.4.5
- Drupal 9.4.6
- Drupal 9.4.7
- Drupal 9.4.8
- Drupal 9.4.9
- Drupal 9.4.10
- Drupal 9.4.11
- Drupal 9.4.12
- Drupal 9.4.13
- Drupal 9.4.14
- Drupal 9.4.15
- Drupal 9.5.0
- Drupal 9.5.1
- Drupal 9.5.2
- Drupal 9.5.3
- Drupal 9.5.4
- Drupal 9.5.5
- Drupal 9.5.6
- Drupal 9.5.7
- Drupal 9.5.8
- Drupal 9.5.9
- Drupal 9.5.10
- Drupal 9.5.11
- Drupal 10.0.0
- Drupal 10.0.1
- Drupal 10.0.2
- Drupal 10.0.3
- Drupal 10.0.4
- Drupal 10.0.5
- Drupal 10.0.6
- Drupal 10.0.7
- Drupal 10.0.8
- Drupal 10.0.9
- Drupal 10.0.10
- Drupal 10.0.11
- Drupal 10.1.0
- Drupal 10.1.1
- Drupal 10.1.2
- Drupal 10.1.3
- Drupal 10.1.4
- Drupal 10.1.5
- Drupal 10.1.6
- Drupal 10.1.7
- Drupal 10.1.8
- Drupal 10.2.0
- Drupal 10.2.1
- Drupal 10.2.2
- Drupal 10.2.3
- Drupal 10.2.4
- Drupal 10.2.5
- Drupal 10.2.6
- Drupal 10.2.7
- Drupal 10.2.8
- Drupal 10.2.9
- Drupal 10.2.10
- Drupal 10.2.11
- Drupal 10.2.12
- Drupal 10.3.0
- Drupal 10.3.1
- Drupal 10.3.2
- Drupal 10.3.3
- Drupal 10.3.4
- Drupal 10.3.5
- Drupal 10.3.6
- Drupal 10.3.7
- Drupal 10.3.8
- Drupal 10.3.9
- Drupal 10.3.10
- Drupal 10.3.11
- Drupal 10.3.12
- Drupal 10.3.13
- Drupal 10.3.14
- Drupal 10.4.0
- Drupal 10.4.1
- Drupal 10.4.2
- Drupal 10.4.3
- Drupal 10.4.4
- Drupal 10.4.5
- Drupal 10.4.6
- Drupal 10.4.7
- Drupal 10.4.8
- Drupal 10.5.0
- Drupal 10.5.1
- Drupal 10.5.2
- Drupal 10.5.3
- Drupal 10.5.4
- Drupal 10.5.5
- Drupal 11.0.0
- Drupal 11.0.1
- Drupal 11.0.2
- Drupal 11.0.3
- Drupal 11.0.4
- Drupal 11.0.5
- Drupal 11.0.6
- Drupal 11.0.7
- Drupal 11.0.8
- Drupal 11.0.9
- Drupal 11.0.10
- Drupal 11.0.11
- Drupal 11.0.12
- Drupal 11.0.13
- Drupal 11.1.0
- Drupal 11.1.1
- Drupal 11.1.2
- Drupal 11.1.3
- Drupal 11.1.4
- Drupal 11.1.5
- Drupal 11.1.6
- Drupal 11.1.7
- Drupal 11.1.8
- Drupal 11.2.0
- Drupal 11.2.1
- Drupal 11.2.2
- Drupal 11.2.3
- Drupal 11.2.4
- Drupal 11.2.5
- Drupal 11.2.6
- Drupal 11.2.7