CVE-2026-25748
8.6 · HIGHOverview
CVE-2026-25748 is a high-severity vulnerability affecting goauthentik authentik. It was published on February 12, 2026 and has a CVSS 3.1 base score of 8.6 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
authentik is an open-source identity provider. Prior to 2025.10.4 and 2025.12.4, with a malformed cookie it was possible to bypass authentication when using forward authentication in the authentik Proxy Provider when used in conjunction with Traefik or Caddy as reverse proxy. When a malicious cookie was used, none of the authentik-specific X-Authentik-* headers were set which depending on application can grant access to an attacker. authentik 2025.10.4 and 2025.12.4 fix this issue.
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, < 2025.10.4 | Affected |
Frequently Asked Questions
What is CVE-2026-25748?
CVE-2026-25748 is a high-severity vulnerability affecting goauthentik authentik. It was published on February 12, 2026 and has a CVSS 3.1 base score of 8.6 (HIGH).
How severe is CVE-2026-25748?
This vulnerability has a CVSS 3.1 base score of 8.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-25748?
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-2026-25748?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-25748 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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