Track vulnerabilities like this one. Sign up free to get alerted when software you use is affected.

CVE-2026-5343: Drupal SAML SSO lets attackers bypass login

CVE-2026-5343 · published 5 months ago

Summary

Versions of Drupal SAML SSO – Service Provider before 3.1.4 can be tricked into accepting unauthorized users. This could let an attacker gain higher privileges than intended. Upgrade to version 3.1.4 or later to close the gap.

Original advisory text

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

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.

References

https://www.drupal.org/sa-contrib-2026-031 URL
https://git.drupalcode.org/project/miniorange_saml URL
https://www.drupal.org/project/miniorange_saml URL
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/5xxx/CVE-2026-5343.j... Vendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2026-5343 Vendor Advisory

Fix within

Internet-facing 14 days

Internal At next upgrade

Not known to be exploited
Needs hands-on effort to exploit
Gives an attacker full control

Severity

7.4 High

Exploitation

<1% chance of attack within 30 days

Type

CWE-754Improper Check for Unusual or Exceptional Conditions

Timeline

Published28 May 2026

Updated4 Nov 2026

First seen29 May 2026

Sources

CVE-2026-5343 · NVD

CVE-2026-5343 · OSV

Track software like this

Free during beta