---
id: "CVE-2026-87943"
kind: "vulnerability"
aliases: ["CVE-2026-87943"]
title: "Drupal SAML SSO module: missing authorization lets users force pages"
severity: "medium"
cvss: 6.5
epss: 0.00194
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["drupal", "package", "saml", "self-hosted", "sso"]
not_affected_if: ["module-not-installed"]
published_at: "2026-10-22T02:17:03+00:00"
first_seen_at: "2026-10-23T21:57:30+00:00"
updated_at: "2026-10-25T03:48:38+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-87943", "first_seen_at": "2026-10-23T21:57:30+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-87943", "first_seen_at": "2026-10-24T07:15:52+00:00"}]
---

# Drupal SAML SSO module: missing authorization lets users force pages

The Drupal SAML SSO - Service Provider module lacks an authorization check, so a user can reach pages they should not see by browsing to them directly. Versions 0.0.0 through 3.2.0 are listed as affected.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed version of the Drupal SAML SSO - Service Provider module, for example with `drush pm:list --filter=saml`
- unknown for any further configuration check, as the sources do not say which pages are exposed

## Fix

- Upgrade the SAML SSO - Service Provider module to a version above `3.2.0`
- unknown for the exact fixed version, as the sources do not say

## Timeline

- 2026-10-23T21:57:30+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-87943
- 2026-10-24T07:15:52+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-87943

## From the sources

Missing Authorization vulnerability in Drupal SAML SSO - Service Provider  allows Forceful Browsing. This issue affects SAML SSO - Service Provider  versions: from 0.0.0 to 3.2.0.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_