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CVE-2026-47201 authentik: XML Signature Wrapping in SAML Source ACS allows authentication as arbitrary federated user

🗓️ 02 Jun 2026 20:30:55Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 39 Views

Authentik SAML Source ACS is vulnerable to XML Signature Wrapping, enabling login as a federated user.

Related
Affected
Refs
[
  {
    "vendor": "goauthentik",
    "product": "authentik",
    "versions": [
      {
        "version": "< 2025.12.5",
        "status": "affected"
      },
      {
        "version": "< 2026.2.3",
        "status": "affected"
      },
      {
        "version": "< 2026.5.1",
        "status": "affected"
      }
    ]
  }
]

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02 Jun 2026 20:30Current
CVSS 3.18.5
EPSS0.00182
39