CVE-2026-47201
8.5 · HIGHOverview
CVE-2026-47201 is a high-severity vulnerability affecting goauthentik authentik. It was published on June 2, 2026 and has a CVSS 3.1 base score of 8.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
authentik is an open-source identity provider. Prior to versions 2025.12.5, 2026.2.3, and 2026.5.1, authentik's SAML Source ACS endpoint is vulnerable to XML Signature Wrapping when validating upstream SAML responses. An attacker with any account at the upstream IdP can reuse a valid signed assertion to authenticate as another federated user. This issue has been patched in versions 2025.12.5, 2026.2.3, and 2026.5.1.
Remediation
Check the references section for vendor advisories and patches from goauthentik. Update authentik to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| goauthentik | authentik | >= 0, < 2025.12.6 | Affected |
Frequently Asked Questions
What is CVE-2026-47201?
CVE-2026-47201 is a high-severity vulnerability affecting goauthentik authentik. It was published on June 2, 2026 and has a CVSS 3.1 base score of 8.5 (HIGH).
How severe is CVE-2026-47201?
This vulnerability has a CVSS 3.1 base score of 8.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-47201?
Check the references section for vendor advisories and patches from goauthentik. Update authentik to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-47201?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-47201 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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