CVE-2026-25922 authentik has a Signature Verification Bypass via SAML Assertion Wrapping
Attackers can bypass SAML signature verification to inject malicious assertions, potentially taking over accounts in authentik identity provider deployments.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-25922?
CVE-2026-25922 is a high-severity authentication bypass vulnerability in goauthentik authentik, published on 12 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
authentik is an open-source identity provider. Prior to 2025.8.6, 2025.10.4, and 2025.12.4, when using a SAML Source that has the option Verify Assertion Signature under Verification Certificate enabled and not Verify Response Signature, or does not have the Encryption Certificate setting under Advanced Protocol settings configured, it was possible for an attacker to inject a malicious assertion before the signed assertion that authentik would use instead. authentik 2025.8.6, 2025.10.4, and 2025.12.4 fix this issue.
Which versions are affected by CVE-2026-25922?
1 open source package ship an affected version, including authentik. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
authentik Bitnami | All versions | 2025.8.6, 2025.12.4 |
Products include Goauthentik Authentik.
How do I fix CVE-2026-25922?
Upgrade authentik to a fixed version for your release line: 2025.8.6 or 2025.12.4.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-25922 being exploited?
There is no known exploitation of CVE-2026-25922 in the wild and no public exploit code.
Other vulnerabilities in goauthentik authentik
- CVE-2026-49448 authentik: SourceStage bypass via empty POST
- CVE-2023-46249 authentik potential installation takeover when default admin user is deleted
- CVE-2022-23555 authentik vulnerable to Improper Authentication via invitation URL token reuse
- CVE-2026-42849 authentik: Reflected XSS in SFE AutosubmitStage allows IDP account takeover
- CVE-2026-25227 authentik affected by Remote Code Execution via Context Key Injection in PropertyMapping Test Endpoint
Sources
Also known as BIT-authentik-2026-25922, GHSA-jh35-c4cc-wjm4.