CVE-2026-87945
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
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.
- Record
CVE-2026-87945- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N - Weakness
- CWE-601
- Updated
- 2026-11-02
EUVDEUVD-2026-107856
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.
- Record
EUVD-2026-107856- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-5wg3-cvm2-2f2f
URL Redirection to Untrusted Site ('Open Redirect') vulnerability in Drupal SAML SSO - Service...
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.
- Record
GHSA-5wg3-cvm2-2f2f- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N - Weakness
- CWE-601
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-87945- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N - Weakness
- CWE-601
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2026-87945- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N - Weakness
- CWE-601
- Updated
- 2026-11-02
OSVDRUPAL-CONTRIB-2026-143No score
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 miniorange_saml module does not sufficiently validate certain user-supplied URLs before performing redirects.
An attacker could cause users to be redirected to an external website after authentication. This could be used in phishing attacks or to increase the credibility of malicious links.
- Record
DRUPAL-CONTRIB-2026-143- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
drupal/miniorange_samlPackagist:https://packages.drupal.org/8 | before 3.2.0 | 3.2.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-87945 is a medium vulnerability (CVSS 5.4) in Drupal Saml Sso - Service Provider, published September 9, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.22%, the 12th percentile. Fixed in drupal/miniorange_saml 3.2.0.