Vulnerability in Drupal SAML SSO - Service Provider (CVE-2026-5343)
Summary
Vulnerability in Drupal SAML SSO - Service Provider (CVE-2026-5343). Confidential information can be exposed externally.
Original description
The description as published by the source.
This module enables you to perform SAML-protocol-based single-sign-on (SSO) on a Drupal site.
The module doesn't sufficiently block access, leading to a authentication bypass vulnerability.
Source: GitHub Security Advisories (Global) NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-5343 has been found in Drupal SAML SSO - Service Provider.
Confidential information can be exposed externally. CVSS score: 7.4/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Drupal SAML SSO - Service Provider CVE-2026-5343" on the vendor's site.
CVE-2026-5343 (Drupal SAML SSO - Service Provider) — CWE-754 / CVSS v3 7.4
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-754) exists in Drupal SAML SSO - Service Provider.
Check the vendor advisory for the affected versions of Drupal SAML SSO - Service Provider.
Severity: High (CVSS 7.4/10). Confidential information can be exposed externally.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで Drupal SAML SSO - Service Provider を使っているサービスとバージョンを洗い出す。
-
2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- web nvd.nist.gov
- web drupal.org
- web github.com