Overview
A significant security vulnerability has been identified in the SAML SSO – Service Provider module for Drupal. This flaw, tracked as CVE-2026-5343, involves an ‘Improper Check for Unusual or Exceptional Conditions’ which can lead to privilege escalation. This means an attacker could potentially gain elevated access on your Drupal website, allowing them to perform actions they normally wouldn’t be authorized to do. It’s crucial for administrators and developers using this module to understand the risk and take appropriate steps to secure their installations.
CVE Details
This vulnerability impacts the MiniOrange SAML SSO – Service Provider module for Drupal.
- Product: MiniOrange SAML SSO – Service Provider for Drupal
- Published: May 28, 2026
- Severity: High
- Status: Analyzed
Affected Products
The vulnerability affects the SAML SSO – Service Provider module for Drupal, specifically all versions from 0.0.0 up to, but not including, version 3.1.4. This includes various 7.x and 8.x branches of the module. If your Drupal site uses the MiniOrange SAML SSO – Service Provider module and is running any version older than 3.1.4, it is considered vulnerable.
Current Status
The vulnerability, identified as CVE-2026-5343, has been officially analyzed. This status indicates that the details of the flaw have been reviewed and confirmed, making it a recognized security risk. Users should consider this an active threat until their systems are updated.
Severity Level
With a CVSS score of 7.4, this vulnerability is rated as High severity. Privilege escalation flaws are particularly dangerous as they can allow unauthorized users to gain control over parts of your website, potentially leading to data breaches, website defacement, or complete compromise. The ability for an attacker to escalate their privileges can severely impact the integrity, confidentiality, and availability of your Drupal application and its data.
Possible Solutions
While specific patch details could not be retrieved from the primary reference at the time of writing due to technical restrictions, the description clearly states that the issue affects versions ‘from 0.0.0 before 3.1.4’. Therefore, the most critical mitigation step is to update your MiniOrange SAML SSO – Service Provider module to version 3.1.4 or newer immediately. This update is expected to contain the necessary fixes to address the ‘Improper Check for Unusual or Exceptional Conditions’ vulnerability and prevent privilege escalation.
Always back up your Drupal site before performing any module updates. After updating, thoroughly test your SAML SSO functionality to ensure everything is working as expected.
References
https://www.drupal.org/sa-contrib-2026-031
