Keeping your website secure is a constant effort, and understanding potential risks is key. Today, we’re looking at a recent security concern identified in the Drupal Microsoft Entra ID SSO Login module, known as CVE-2026-0948. This vulnerability presents a medium-level risk due to an authentication bypass flaw that could lead to privilege escalation.
In simple terms, an “authentication bypass” means that an attacker might be able to get around the usual login process. When combined with “privilege escalation,” this means they could potentially gain higher-level access than they should have, possibly even administrative control over parts of a Drupal site using this module. This kind of access could allow unauthorized actions, data manipulation, or even a complete compromise of the affected system.
CVE Details
The vulnerability, identified as CVE-2026-0948, affects the Drupal Microsoft Entra ID SSO Login module. This module helps integrate Drupal websites with Microsoft Entra ID (formerly Azure Active Directory) for single sign-on (SSO) capabilities. The issue was publicly disclosed on February 4, 2026.
- Product: Drupal Microsoft Entra ID SSO Login module
- Published: February 4, 2026
- Severity: Medium (CVSS 6.5)
- Status: Analyzed
Affected Products
This particular vulnerability impacts specific versions of the Drupal Microsoft Entra ID SSO Login module. If you are using this module, you are potentially at risk if your version falls within the range from 0.0.0 up to, but not including, 1.0.4. Specifically, any version prior to 1.0.4 is considered vulnerable.
Current Status
The status of CVE-2026-0948 is “Analyzed.” This means that the vulnerability has been formally identified and assessed. While it indicates that security experts have examined the issue, specific details regarding official patches or detailed mitigation steps were not publicly accessible from the primary reference at the time of this writing. It is crucial for users to stay vigilant for updates.
Severity Level
With a CVSS (Common Vulnerability Scoring System) score of 6.5, this vulnerability is classified as “Medium” severity. A medium severity rating indicates that while the vulnerability is serious and could lead to significant unauthorized access or data compromise, it might require specific conditions or a more complex attack vector to exploit compared to high or critical vulnerabilities. Nevertheless, the potential for privilege escalation makes it a significant concern that requires prompt attention from administrators and developers.
Possible Solutions
At present, specific patch details or definitive upgrade instructions were not available through the provided public reference. However, the general recommendation for any software vulnerability is to update to the latest secure version as soon as it becomes available. For users of the Drupal Microsoft Entra ID SSO Login module, it is imperative to:
- Regularly check the official project page for the Microsoft Entra ID SSO Login module on Drupal.org.
- Monitor Drupal’s official security advisories for updates related to this CVE or any new security releases.
- Upgrade your module to version 1.0.4 or newer immediately once an official patch or updated version is released.
- Implement strong security practices across your Drupal installation, including regular security audits and minimizing unnecessary privileges.
While awaiting a confirmed patch, ensure your Drupal core and other modules are always up-to-date, and consider reviewing your authentication logs for any unusual activity.
References
https://www.drupal.org/sa-contrib-2026-005
