Drupal SAML SSO SP Open Redirect (URL Redirection) 0.0.0-3.2.0
CVE-2026-87945 Published on October 22, 2026
SAML SSO - Service Provider - Critical - Open redirect - SA-CONTRIB-2026-143
URL Redirection to Untrusted Site ('Open Redirect') vulnerability in Drupal SAML SSO - Service Provider allows Fake the Source of Data. This issue affects SAML SSO - Service Provider versions: from 0.0.0 to 3.2.0.
Weakness Type
What is an Open Redirect Vulnerability?
A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. An http parameter may contain a URL value and could cause the web application to redirect the request to the specified URL. By modifying the URL value to a malicious site, an attacker may successfully launch a phishing scam and steal user credentials. Because the server name in the modified link is identical to the original site, phishing attempts have a more trustworthy appearance.
CVE-2026-87945 has been classified to as an Open Redirect vulnerability or weakness.
Affected Versions
Drupal SAML SSO - Service Provider:- Version 0.0.0 and below 3.2.0 is affected.