Vulnerability · Published Oct 22, 2026 · Assigned by drupal
CVE-2026-87944SAML SSO - Service Provider - Critical - Improper certificate validation - SA-CONTRIB-2026-142
Medium 4.8
In plain English
A medium-severity improper certificate validation 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 0.1% (higher than 3% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.8Medium
Exploit odds (30 days)0.1%top 96.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Improper Certificate Validation vulnerability in Drupal SAML SSO - Service Provider allows Adversary in the Middle (AiTM). This issue affects SAML SSO - Service Provider versions: from 0.0.0 to 3.2.0.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist:https://packages.drupal.org/8 | drupal/miniorange_saml | 3.2.0 | DRUPAL-CONTRIB-2026-142 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Drupal | SAML SSO - Service Provider | 0.0.0 – before 3.2.0 |
Weakness: CWE-295 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N