CVE-2026-55806
Drupal core - Less critical - Cache poisoning and open redirect - SA-CORE-2026-007
URL Redirection to Untrusted Site ('Open Redirect') vulnerability in Drupal Drupal core allows Content Spoofing. This issue affects Drupal core versions: from 0.0.0 to 10.5.12, from 10.6.0 to 10.6.11, from 11.2.0 to 11.2.14, from 11.3.0 to 11.3.12, from 0.0.0 to 11.0., from 0.0.0 to 11.1..
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Drupal core - Less critical - Cache poisoning and open redirect - SA-CORE-2026-007
URL Redirection to Untrusted Site ('Open Redirect') vulnerability in Drupal Drupal core allows Content Spoofing. This issue affects Drupal core versions: from 0.0.0 to 10.5.12, from 10.6.0 to 10.6.11, from 11.2.0 to 11.2.14, from 11.3.0 to 11.3.12, from 0.0.0 to 11.0., from 0.0.0 to 11.1..
- Record
CVE-2026-55806- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-601
- Updated
- 2026-11-02
EUVDEUVD-2026-43083
URL Redirection to Untrusted Site ('Open Redirect') vulnerability in Drupal Drupal core allows Content Spoofing. This issue affects Drupal core versions: from 0.0.0 to 10.5.12, from 10.6.0 to 10.6.11, from 11.2.0 to 11.2.14, from 11.3.0 to 11.3.12, from 0.0.0 to 11.0., from 0.0.0 to 11.1..
- Record
EUVD-2026-43083- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-vwxh-w8pq-6q99
URL Redirection to Untrusted Site ('Open Redirect') vulnerability in Drupal Drupal core allows...
URL Redirection to Untrusted Site ('Open Redirect') vulnerability in Drupal Drupal core allows Content Spoofing. This issue affects Drupal core versions: from 0.0.0 to 10.5.12, from 10.6.0 to 10.6.11, from 11.2.0 to 11.2.14, from 11.3.0 to 11.3.12, from 0.0.0 to 11.0., from 0.0.0 to 11.1..
- Record
GHSA-vwxh-w8pq-6q99- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-601
- Updated
- 2026-11-02
NVD
URL Redirection to Untrusted Site ('Open Redirect') vulnerability in Drupal Drupal core allows Content Spoofing. This issue affects Drupal core versions: from 0.0.0 to 10.5.12, from 10.6.0 to 10.6.11, from 11.2.0 to 11.2.14, from 11.3.0 to 11.3.12, from 0.0.0 to 11.0., from 0.0.0 to 11.1..
- Record
CVE-2026-55806- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-601
- Updated
- 2026-11-02
OSV
Drupal core - Less critical - Cache poisoning and open redirect - SA-CORE-2026-007
URL Redirection to Untrusted Site ('Open Redirect') vulnerability in Drupal Drupal core allows Content Spoofing. This issue affects Drupal core versions: from 0.0.0 to 10.5.12, from 10.6.0 to 10.6.11, from 11.2.0 to 11.2.14, from 11.3.0 to 11.3.12, from 0.0.0 to 11.0., from 0.0.0 to 11.1..
- Record
CVE-2026-55806- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-601
- Updated
- 2026-11-02
OSVBIT-drupal-2026-55806 No score
Drupal core - Less critical - Cache poisoning and open redirect - SA-CORE-2026-007
URL Redirection to Untrusted Site ('Open Redirect') vulnerability in Drupal Drupal core allows Content Spoofing. This issue affects Drupal core versions: from 0.0.0 to 10.5.12, from 10.6.0 to 10.6.11, from 11.2.0 to 11.2.14, from 11.3.0 to 11.3.12, from 0.0.0 to 11.0., from 0.0.0 to 11.1..
- Record
BIT-drupal-2026-55806- Updated
- 2026-11-02
OSVDRUPAL-CORE-2026-007 No score
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.
- Record
DRUPAL-CORE-2026-007- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
drupalBitnami |
before 10.5.12, 10.6.0 up to 10.6.11, 11.0.0 up to 11.2.14, 11.3.0 up to 11.3.12 | 10.5.1210.6.1111.2.1411.3.12 |
drupal/corePackagist |
before 10.5.12, 10.6.0 up to 10.6.11, 11.2.0 up to 11.2.14, 11.3.0 up to 11.3.12, 11.0.0 up to 11.1.0, 11.1.0 up to 11.2.0, plus listed versions 10.0.010.0.0-alpha110.0.0-alpha210.0.0-alpha310.0.0-alpha4 Show 45 moreShow less10.0.0-alpha510.0.0-alpha610.0.0-alpha710.0.0-beta110.0.0-beta210.0.0-rc110.0.0-rc210.0.0-rc310.0.110.0.1010.0.1110.0.210.0.310.0.410.0.510.0.610.0.710.0.810.0.910.1.010.1.0-alpha110.1.0-beta110.1.0-rc110.1.110.1.210.1.310.1.410.1.510.1.610.1.710.1.810.2.010.2.0-alpha110.2.0-beta110.2.0-rc110.2.110.2.1010.2.1110.2.1210.2.210.2.310.2.410.2.510.2.610.2.7 |
10.5.1210.6.1111.2.1411.3.1211.1.011.2.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-55806 is a medium vulnerability (CVSS 5.9) in Drupal, published June 17, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.34%, the 27th percentile. Fixed in drupal 10.5.12.
References
Left out here: 422 versions. The JSON record has them.