CVE-2026-49448: CWE-287: Improper Authentication in goauthentik authentik
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.
AI Analysis
Technical Summary
authentik versions before 2025.12.6, 2026.2.4, and 2026.5.1 contain an authentication bypass vulnerability (CWE-287) where the Source stage can be bypassed by sending an empty POST request. This flaw allows attackers to bypass authentication mechanisms, potentially gaining unauthorized access. The vulnerability has a CVSS 3.1 score of 9.8, indicating critical severity with network attack vector, no privileges required, no user interaction, and high impact on confidentiality, integrity, and availability. The issue is fixed in versions 2025.12.6, 2026.2.4, and 2026.5.1.
Potential Impact
Successful exploitation of this vulnerability allows an unauthenticated attacker to bypass the authentication process in authentik, potentially gaining unauthorized access to protected resources. The impact includes full compromise of confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
Upgrade authentik to version 2025.12.6, 2026.2.4, or 2026.5.1 or later, where this authentication bypass vulnerability has been patched. No other mitigation or temporary fix is indicated. Patch status is confirmed by the vendor advisory information.
CVE-2026-49448: CWE-287: Improper Authentication in goauthentik authentik
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.
CVSS v3.1
Score 9.8critical
Affected software
pkg:github/goauthentik/authentikRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
authentik versions before 2025.12.6, 2026.2.4, and 2026.5.1 contain an authentication bypass vulnerability (CWE-287) where the Source stage can be bypassed by sending an empty POST request. This flaw allows attackers to bypass authentication mechanisms, potentially gaining unauthorized access. The vulnerability has a CVSS 3.1 score of 9.8, indicating critical severity with network attack vector, no privileges required, no user interaction, and high impact on confidentiality, integrity, and availability. The issue is fixed in versions 2025.12.6, 2026.2.4, and 2026.5.1.
Potential Impact
Successful exploitation of this vulnerability allows an unauthenticated attacker to bypass the authentication process in authentik, potentially gaining unauthorized access to protected resources. The impact includes full compromise of confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
Upgrade authentik to version 2025.12.6, 2026.2.4, or 2026.5.1 or later, where this authentication bypass vulnerability has been patched. No other mitigation or temporary fix is indicated. Patch status is confirmed by the vendor advisory information.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-30T02:43:33.106Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a1f41c7e29bf47b5000d215
Added to database: 06/02/2026, 20:49:11 UTC
Last enriched: 06/10/2026, 11:17:26 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 114
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