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CVE-2026-5343— SAML SSO - Service Provider - Critical - Authentication bypass - SA-CONTRIB-2026-031

Quick assessment

Affected
Drupal SAML SSO - Service Provider
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Drupal SAML SSO - Service Provider是Drupal公司的一个Drupal单点登录与SAML身份认证模块。 Drupal SAML SSO - Service Provider 3.1.4之前版本存在安全漏洞，该漏洞源于异常条件检查不当，可能导致权限提升。

AI Predicted 8.5 Difficulty: Moderate EPSS 0.26% · P17

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts

Affected Version Matrix 1

VendorProduct Version RangeStatus
Drupal SAML SSO - Service Provider 0.0.0< 3.1.4 affected
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I. Basic Information for CVE-2026-5343

Vulnerability Information
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Vulnerability Title
SAML SSO - Service Provider - Critical - Authentication bypass - SA-CONTRIB-2026-031
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Check for Unusual or Exceptional Conditions vulnerability in Drupal SAML SSO - Service Provider allows Privilege Escalation. This issue affects SAML SSO - Service Provider: from 0.0.0 before 3.1.4.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
对因果或异常条件的不恰当检查
Source: CVE Program / CVE List V5
Vulnerability Title
Drupal SAML SSO - Service Provider 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Drupal SAML SSO - Service Provider是Drupal公司的一个Drupal单点登录与SAML身份认证模块。 Drupal SAML SSO - Service Provider 3.1.4之前版本存在安全漏洞，该漏洞源于异常条件检查不当，可能导致权限提升。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Drupal SAML SSO - Service Provider 0.0.0 ~ 3.1.4 -

II. Public POCs for CVE-2026-5343

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III. Intelligence Information for CVE-2026-5343

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Vendor Advisories for CVE-2026-5343 (1)

IV. Related Vulnerabilities

Same product: SAML SSO - Service Provider
Same vendor: Drupal
Same weakness: CWE-754

V. Comments for CVE-2026-5343

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