Name: CVE-2026-87944: Drupal SAML SSO - Service Provider: Improper Certificate Validation vulnerability in Drupal SAML SSO - Service Provider allows Adversary in the Middle…
Creator: Rapid7
Published: 2026-10-22T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-87944, CWE-295, CVSS 4.8, EPSS 0.00096

Improper Certificate Validation vulnerability in Drupal SAML SSO - Service Provider allows Adversary in the Middle (AiTM). This issue affects SAML SSO - Service Provider versions: from 0.0.0 to 3.2.0.

CVSS Details

CVSS 3.1 Base Score: 4.8
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N)

Prioritize with Active Threat Intelligence

With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.

Explore Intelligence Hub

MDR Buyer's Guide

Global Threat Landscape Report

Grow your business

CVSS Details

Prioritize with Active Threat Intelligence