CVE-2026-49448
CRITICALCVSS 9.8/10EPSS 0.36%
Last modified
CVE-2026-49448 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. authentik is an open-source identity provider. Prior to versions 2025.12.6, 2026.2.4, and 2026.5.1, the Source stage can be bypassed by sending an empty POST. EPSS estimates a 0.36% chance of exploitation in the next 30 days.
Description
authentik is an open-source identity provider. Prior to versions 2025.12.6, 2026.2.4, and 2026.5.1, the Source stage can be bypassed by sending an empty POST. This issue has been patched in versions 2025.12.6, 2026.2.4, and 2026.5.1.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Goauthentik | Authentik | < 2025.12.6 |
| Goauthentik | Authentik | >= 2026.2.0, < 2026.2.4 |
| Goauthentik | Authentik | >= 2026.5.0, < 2026.5.1 |
References
- https://github.com/goauthentik/authentik/security/advisories/GHSA-xp7f-xjjx-gwm8Exploit, Vendor Advisory
- https://github.com/goauthentik/authentik/security/advisories/GHSA-xp7f-xjjx-gwm8Exploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-49448?
authentik is an open-source identity provider. Prior to versions 2025.12.6, 2026.2.4, and 2026.5.1, the Source stage can be bypassed by sending an empty POST. This issue has been patched in versions 2025.12.6, 2026.2.4, and 2026.5.1.
How severe is CVE-2026-49448?
CVE-2026-49448 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.36% probability of exploitation in the next 30 days.
How do I fix CVE-2026-49448?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2026-49448?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST