---
id: CVE-2026-87945
title: SAML SSO - Service Provider  - Critical - Open redirect - SA-CONTRIB-2026-143
summary: >-
  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.
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N'
cvssSource: adp
cwe:
  - CWE-601
vendor: Drupal
product: SAML SSO - Service Provider
affected:
  - saml_sso_-_service_provider >= 0.0.0 < 3.2.0
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-22T16:51:05.896557Z'
published: '2026-10-22'
updated: '2026-10-22'
sourceUpdated: '2026-10-22T16:51:08.655Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-87945'
references:
  - url: 'https://www.drupal.org/sa-contrib-2026-143'
tags:
  - cve.org
ingestedAt: '2026-10-22T02:23:25.198Z'
epss: 0.00218
epssPercentile: 0.1216
---

## Overview

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.

## Affected

- `saml_sso_-_service_provider >= 0.0.0 < 3.2.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.