SB2026091118 - Multiple vulnerabilities in SAML SSO - Service Provider module for Drupal

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Main Vulnerability Database SB2026091118

SB2026091118 - Multiple vulnerabilities in SAML SSO - Service Provider module for Drupal

Published: September 11, 2026

Security Bulletin ID SB2026091118
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 11
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 55% Low 45%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 11 vulnerabilities.


1) Open redirect (CVE-ID: CVE-2026-87945)

CWE-ID: CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]


The vulnerability allows a remote attacker to redirect victims to arbitrary URL.

The vulnerability exists due to improper sanitization of user-supplied data. A remote attacker can create a link that leads to a trusted website, however, when clicked, redirects the victim to arbitrary domain.

Successful exploitation of this vulnerability may allow a remote attacker to perform a phishing attack and steal potentially sensitive information.


2) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2026-87953)

CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]


The disclosed vulnerability allows a remote user to perform SSRF attacks.

The vulnerability exists due to insufficient validation of user-supplied input. A remote administrator can send a specially crafted HTTP request and trick the application to initiate requests to arbitrary systems.

Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.


3) Authentication Bypass by Capture-replay (CVE-ID: CVE-2026-87952)

CWE-ID: CWE-294 - Authentication Bypass by Capture-replay

CVSSv4: 2.3 [CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to the affected module does not sufficiently prevent reuse of previously accepted SAML assertions. A remote user can replay a valid assertion during its validity period, allowing repeated authentication attempts using the same assertion.


4) Information disclosure (CVE-ID: CVE-2026-87951)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote user to gain access to potentially sensitive information.

The vulnerability exists due to the affected module improperly stores sensitive authentication information. A remote administrator can gain unauthorized access to sensitive information on the system.


5) Information disclosure (CVE-ID: CVE-2026-87950)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to the affected module contains embedded credentials used by the functionality provided by the module. A remote attacker can gain unauthorized access to sensitive information on the system.


6) Improper Authentication (CVE-ID: CVE-2026-87947)

CWE-ID: CWE-287 - Improper Authentication

CVSSv4: 6.3 [CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to the affected module does not properly restrict which signature algorithm may be used to validate a SAML assertion. A remote attacker can bypass authentication process and gain unauthorized access to the application.


7) Cryptographic issues (CVE-ID: CVE-2026-87946)

CWE-ID: CWE-310 - Cryptographic Issues

CVSSv4: 6.3 [CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to the affected module uses cryptographic constructions that do not align with current security best practices. A remote attacker can weaken the security of the SAML authentication workflow.


8) Improper Certificate Validation (CVE-ID: CVE-2026-87944)

CWE-ID: CWE-295 - Improper Certificate Validation

CVSSv4: 6.3 [CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the affected module does not properly validate TLS certificates when making outbound HTTPS requests. A remote attacker can impersonate a trusted remote service and influence communications performed by the module.


9) Improper access control (CVE-ID: CVE-2026-87943)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to the miniorange_saml module does not correctly restrict access to certain functionality intended for administrative use. A remote attacker can access functionality or modify configuration values without proper privileges.


10) Cross-site scripting (CVE-ID: CVE-2026-87949)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: 4.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]


The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote user can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.


11) Cross-site scripting (CVE-ID: CVE-2026-87948)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: 4.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]


The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote user can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.


Remediation

Install update from vendor's website.

References