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Review reviewHigh

CVE-2026-5343

Drupal SAML SSO - Service Provider, saml sso - service provider

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.

CVSS
7.4
EPSS
0.26%
17.3% percentile
CISA KEV
Not listed
Published
2026.05.29
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.26%
Technical severityCVSS 7.4

Vulnerability overview

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 product and versions

Product
Drupal SAML SSO - Service Provider, saml sso - service provider
Affected versions
>= 0.0.0 < 3.1.4, >= 3.0.1 < 3.1.4, 7.x-1.0, 7.x-1.1, 7.x-1.2, 7.x-1.3, 7.x-1.4, 7.x-1.5, 7.x-1.6, 7.x-1.7, 7.x-1.8, 7.x-1.9, 7.x-1.91, 7.x-1.92, 7.x-1.93, 7.x-1.94, 7.x-1.95, 7.x-1.96, 7.x-1.97, 7.x-1.98
Fixed versions
3.1.4

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Drupal SAML SSO - Service Provider, saml sso - service provider and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE
CWE-754