CVE-2026-87944CWE-295

CVE-2026-87944

Medium · published October 22, 2026

CVSS v3.1
4.8
EPSS
0%
Percentile
1.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.8 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00113 · 1.3th percentile
Weakness
CWE-295 · Improper Certificate Validation
Published
2026-10-22T06:17Z
References (1)
https://www.drupal.org/sa-contrib-2026-142 · [email protected]
EPSS history
Timeline
  • 23 OCT 04:09Z
    EPSS moved — → 0%
    epss
  • 22 OCT 01:21Z
    SAML SSO - Service Provider - Critical - Improper certificate validation - SA-CONTRIB-2026-142
    cvelistv5
  • 22 OCT 01:21Z
    SAML SSO - Service Provider - Critical - Improper certificate validation - SA-CONTRIB-2026-142
    cvelistv5