CVE-2026-55806
Drupal core - Less critical - Cache poisoning and open redirect - SA-CORE-2026-007
Description
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.*.
INFO
Published Date :
July 10, 2026, 10:16 p.m.
Last Modified :
July 16, 2026, 3:26 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Update Drupal core to the latest version.
- Verify the update was successful.
- Remove any outdated or vulnerable modules.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-55806.
| URL | Resource |
|---|---|
| https://www.drupal.org/sa-core-2026-007 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-55806 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-55806
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-55806 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-55806 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jul. 16, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:* versions up to (excluding) 10.5.12 *cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:* versions from (including) 10.6.0 up to (excluding) 10.6.11 *cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:* versions from (including) 11.0.0 up to (excluding) 11.2.14 *cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:* versions from (including) 11.3.0 up to (excluding) 11.3.12 Added Reference Type Drupal.org: https://www.drupal.org/sa-core-2026-007 Types: Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 13, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Added SSVC {'id': 'CVE-2026-55806', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-07-13T18:21:46.004176Z'} -
New CVE Received by [email protected]
Jul. 10, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.drupalcode.org/project/drupal', 'vendor': 'Drupal', 'product': 'Drupal core', 'versions': [{'status': 'affected', 'version': '0.0.0', 'lessThan': '10.5.12', 'versionType': 'semver'}, {'status': 'affected', 'version': '10.6.0', 'lessThan': '10.6.11', 'versionType': 'semver'}, {'status': 'affected', 'version': '11.2.0', 'lessThan': '11.2.14', 'versionType': 'semver'}, {'status': 'affected', 'version': '11.3.0', 'lessThan': '11.3.12', 'versionType': 'semver'}, {'status': 'affected', 'version': '0.0.0', 'lessThan': '11.0.*', 'versionType': 'semver'}, {'status': 'affected', 'version': '0.0.0', 'lessThan': '11.1.*', 'versionType': 'semver'}], 'collectionURL': 'https://www.drupal.org/project/drupal'}] Added Description 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.*. Added CWE CWE-601 Added Reference https://www.drupal.org/sa-core-2026-007