Vulnerability · Published May 28, 2026 · Assigned by drupal
CVE-2026-5343SAML SSO - Service Provider - Critical - Authentication bypass - SA-CONTRIB-2026-031
High 7.4
In plain English
A high-severity security flaw in SAML SSO - Service Provider from Drupal. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.4High
Exploit odds (30 days)0.3%top 82.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist:https://packages.drupal.org/8 | drupal/miniorange_saml | 3.1.4 | DRUPAL-CONTRIB-2026-031 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Drupal | SAML SSO - Service Provider | 0.0.0 – before 3.1.4 |
Weakness: CWE-754 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N