View online: https://www.drupal.org/sa-contrib-2026-150 Project: SAML SSO - Service Provider [1] Date: 2026-September-09 Security risk: *Moderately critical* 10 ∕ 25 AC:Complex/A:User/CI:None/II:Some/E:Theoretical/TD:All [2] Vulnerability: Insufficient replay protection Affected versions: <3.2.0 CVE IDs: CVE-2026-87952 Description:  This module allows you to configure your Drupal site as a SAML 2.0 Service Provider so that users can authenticate through an external identity provider. The module does not sufficiently prevent reuse of previously accepted SAML assertions. Under certain circumstances, a valid assertion may be replayed within its validity period, potentially allowing repeated authentication attempts using the same assertion. This vulnerability is mitigated by the fact that an attacker must first obtain a valid SAML assertion and can only reuse it during the assertion's validity period. Solution:  Install the latest version: * Upgrade to miniorange_saml 3.2.0 [3]. Reported By:  * Brian Willows (hsjbrianwillows) [4] Fixed By:  * Roushan Kumar Singh (roushan59227) [5] * Sudhanshu Dhage (sudhanshu0542) [6] Coordinated By:  * Bram Driesen (bramdriesen) [7] of the Drupal Security Team * Greg Knaddison (greggles) [8] of the Drupal Security Team * Juraj Nemec (poker10) [9] of the Drupal Security Team * Jess (xjm) [10] of the Drupal Security Team * Swan Kalata (akalata) [11] of the Drupal Security Team ------------------------------------------------------------------------------ Contribution record [12] [1] https://www.drupal.org/project/miniorange_saml [2] https://www.drupal.org/security-team/risk-levels [3] https://www.drupal.org/project/miniorange_saml/releases/3.2.0 [4] https://www.drupal.org/u/hsjbrianwillows [5] https://www.drupal.org/u/roushan59227 [6] https://www.drupal.org/u/sudhanshu0542 [7] https://www.drupal.org/u/bramdriesen [8] https://www.drupal.org/u/greggles [9] https://www.drupal.org/u/poker10 [10] https://www.drupal.org/u/xjm [11] https://www.drupal.org/u/akalata [12] https://new.drupal.org/contribution-record?source_link=https%3A//www.drupal....