Vulnerability details
CVE-2026-49448
goauthentik authentik
authentik: SourceStage bypass via empty POST
CVSS 3.1
9.8Critical
Official 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 scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.8Critical | 3.1 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| goauthentik | authentik | < 2025.12.6 | CVEProject cvelistV5 (CNA) |
| goauthentik | authentik | < 2026.2.4 | CVEProject cvelistV5 (CNA) |
| goauthentik | authentik | < 2026.5.1 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://github.com/goauthentik/authentik/security/advisories/GHSA-xp7f-xjjx-gwm8 x_refsource_CONFIRM
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Details
- Published
- 2026-06-03
- Last updated
- 2026-06-03
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
0.4%
Probability of exploitation in 30 days
35%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- Proof of concept
- Technical impact
- Total
Weaknesses (CWE)
- CWE-287Improper Authentication