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CVE-2026-49448

Goauthentik Authentik authentication bypass

9.8 CRITICALPublic exploitEPSS 0.58%
  1. Published2 Jun 2026

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 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Goauthentik Authentik≥ 2026.2.0 < 2026.2.4 · ≥ 2026.5.0 < 2026.5.1 · < 2025.12.6

Remediation

Fixed in
Goauthentik Authentik≥ 2026.2.4

References

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Frequently asked

Is CVE-2026-49448 being actively exploited?

CVE-2026-49448 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.58%.

How severe is CVE-2026-49448?

CVE-2026-49448 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.58% probability of exploitation.

Which products are affected by CVE-2026-49448?

Affected products include Goauthentik Authentik.

How do I fix CVE-2026-49448?

Upgrade affected software to a fixed version, for example Goauthentik Authentik 2026.2.4 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-49448 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.