CVE-2026-87947

Published Oct 22, 2026

Last updated 2 days ago

CVSS medium 4.8

Overview

Description
Improper Verification of Cryptographic Signature vulnerability in Drupal SAML SSO - Service Provider allows Signature Spoof. This issue affects SAML SSO - Service Provider versions: from 0.0.0 to 3.2.0.
Source
mlhess@drupal.org
NVD status
Awaiting Analysis

Risk scores

CVSS 3.1

Type
Secondary
Base score
4.8
Impact score
2.5
Exploitability score
2.2
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Severity
MEDIUM

Weaknesses

mlhess@drupal.org
CWE-347

Social media

Hype score
Not currently trending

References

Sources include official advisories and independent security research.