CVE-2026-54730

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Source

https://cve.org/CVERecord?id=CVE-2026-54730

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54730.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-54730

Aliases

BIT-authentik-2026-54730
GHSA-3v9h-3hrm-29cx

Published

2026-08-18T16:55:29Z

Modified

2026-09-10T03:30:58Z

Severity

8.6 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator

Summary

authentik: Authentication Flow Bypass via Unguarded challenge_valid() in AuthenticatorEndpointGDTCStage and GoogleChromeStageView

Details

authentik is an open-source identity provider. Prior to 2026.2.6 and 2026.5.5, the enterprise Google Chrome device-trust stages advance the flow without confirming that the out-of-band device attestation actually ran. Affected enterprise deployments place either a Google Chrome Endpoint stage with mode set to REQUIRED or the deprecated Google Chrome Device Trust Connector stage in an authentication flow. The device attestation occurs in a verification iframe that calls the Google Verified Access API and records the verified device on success, but the vulnerable stages treat the flow as passed as soon as the stage is submitted. An attacker who can reach such a stage, including after primary username and password authentication, can skip the verification iframe and authenticate from a device that was never verified. Where device trust is the only additional factor, that protection is fully bypassed, while other configured factors remain in force. This issue is fixed in versions 2026.2.6 and 2026.5.5.

Database specific

{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-284",
        "CWE-807"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54730.json"
}

References

Affected packages

Git / github.com/goauthentik/authentik

Affected ranges

Type

GIT

Repo

https://github.com/goauthentik/authentik

Events

Introduced

7a71bcfcdc442204b8985ab379b22f7eb9fe321f

Fixed

ed54cc3b30a4511c650690cbdcd7bfbc198c02b8

Fixed

8f35dc72e2b8f832dce5f385f3bf3830f7791d26

Fixed

27866a94f29d0d7f784b3c462a697a968d3f6b9c

Fixed

85adb0bbbd7ad4f2807ec21cf25bb42aee81afbc

Database specific

Show details

{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2026.2.6"
        },
        {
            "introduced": "2026.5.0"
        },
        {
            "fixed": "2026.5.5"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

version/0.*

version/0.0.10-alpha

version/0.0.11-alpha

version/0.0.12-alpha

version/0.0.13-alpha

version/0.0.2-alpha

version/0.0.3-alpha

version/0.0.4-alpha

version/0.0.5-alpha

version/0.0.6-alpha

version/0.0.7-alpha

version/0.0.8-alpha

version/0.0.9-alpha

version/0.1.0-beta

version/0.1.1-beta

version/0.1.10-beta

version/0.1.11-beta

version/0.1.12-beta

version/0.1.13-beta

version/0.1.14-beta

version/0.1.15-beta

version/0.1.16-beta

version/0.1.17-beta

version/0.1.18-beta

version/0.1.19-beta

version/0.1.2-beta

version/0.1.20-beta

version/0.1.21-beta

version/0.1.22-beta

version/0.1.23-beta

version/0.1.24-beta

version/0.1.25-beta

version/0.1.26-beta

version/0.1.27-beta

version/0.1.28-beta

version/0.1.29-beta

version/0.1.3-beta

version/0.1.30-beta

version/0.1.31-beta

version/0.1.32-beta

version/0.1.33-beta

version/0.1.34-beta

version/0.1.35-beta

version/0.1.36-beta

version/0.1.37-beta

version/0.1.38-beta

version/0.1.4-beta

version/0.1.5-beta

version/0.1.6-beta

version/0.1.7-beta

version/0.1.8-beta

version/0.1.9-beta

version/0.10.0-rc1

version/0.10.0-rc2

version/0.10.0-rc3

version/0.10.0-rc4

version/0.10.0-rc5

version/0.10.0-rc6

version/0.10.0-stable

version/0.10.1-stable

version/0.10.2-stable

version/0.10.3-stable

version/0.10.4-stable

version/0.10.5-stable

version/0.10.6-stable

version/0.10.7-stable

version/0.10.8-stable

version/0.10.9-stable

version/0.11.0-stable

version/0.12.0-stable

version/0.12.1-stable

version/0.12.10-stable

version/0.12.11-stable

version/0.12.2-stable

version/0.12.3-stable

version/0.12.4-stable

version/0.12.5-stable

version/0.12.6-stable

version/0.12.7-stable

version/0.12.8-stable

version/0.12.9-stable

version/0.13.0-rc1

version/0.13.0-rc2

version/0.13.0-rc3

version/0.13.0-rc4

version/0.13.0-stable

version/0.13.1-stable

version/0.13.2-stable

version/0.13.3-stable

version/0.2.0-beta

version/0.2.1-beta

version/0.2.2-beta

version/0.2.3-beta

version/0.2.4-beta

version/0.2.5-beta

version/0.2.6-beta

version/0.2.7-beta

version/0.2.8-beta

version/0.3.0-beta

version/0.4.0-beta

version/0.4.1-beta

version/0.4.2-beta

version/0.5.0-beta

version/0.6.0-beta

version/0.6.1-beta

version/0.6.2-beta

version/0.6.3-beta

version/0.7.0-beta

version/0.7.1-beta

version/0.7.10-beta

version/0.7.11-beta

version/0.7.12-beta

version/0.7.13-beta

version/0.7.14-beta

version/0.7.15-beta

version/0.7.16-beta

version/0.7.17-beta

version/0.7.2-beta

version/0.7.3-beta

version/0.7.4-beta

version/0.7.5-beta

version/0.7.6-beta

version/0.7.7-beta

version/0.7.8-beta

version/0.7.9-beta

version/0.8.0-beta

version/0.8.1-beta

version/0.8.10-beta

version/0.8.11-beta

version/0.8.12-beta

version/0.8.14-beta

version/0.8.15-beta

version/0.8.2-beta

version/0.8.3-beta

version/0.8.4-beta

version/0.8.5-beta

version/0.8.6-beta

version/0.8.7-beta

version/0.8.8-beta

version/0.8.9-beta

version/0.9.0-pre1

version/0.9.0-pre2

version/0.9.0-pre3

version/0.9.0-pre4

version/0.9.0-pre5

version/0.9.0-pre6

version/0.9.0-pre7

version/0.9.0-rc1

version/0.9.0-rc2

version/0.9.0-stable

version/2021.*

version/2021.1.1-rc1

version/2021.1.1-rc2

version/2021.1.1-stable

version/2021.1.2-stable

version/2021.1.3-stable

version/2021.10.1-rc3

version/2021.10.3

version/2021.10.4

version/2021.12.1

version/2021.12.1-rc1

version/2021.12.1-rc2

version/2021.12.1-rc3

version/2021.12.1-rc4

version/2021.12.1-rc5

version/2021.12.2

version/2021.12.3

version/2021.12.4

version/2021.12.5

version/2021.2.2-stable

version/2021.2.3-stable

version/2021.3.1

version/2021.3.1-rc1

version/2021.3.1-rc2

version/2021.3.2

version/2021.3.3

version/2021.3.4

version/2021.4.1

version/2021.4.1-rc1

version/2021.4.1-rc2

version/2021.5.1

version/2021.5.1-rc10

version/2021.5.1-rc8

version/2021.5.1-rc9

version/2021.5.2

version/2021.6.1

version/2021.6.1-rc1

version/2021.6.1-rc2

version/2021.6.1-rc3

version/2021.6.1-rc4

version/2021.6.3

version/2021.6.4

version/2021.7.1

version/2021.7.1-rc1

version/2021.8.1

version/2021.8.1-rc2

version/2021.8.2

version/2021.8.3

version/2021.8.4

version/2021.9.1

version/2021.9.1-rc1

version/2021.9.1-rc2

version/2021.9.1-rc3

version/2021.9.2

version/2021.9.3

version/2022.*

version/2022.1.1

version/2022.1.3

version/2022.1.4

version/2022.10.1

version/2022.12.0

version/2022.12.1

version/2022.2.1

version/2022.3.3

version/2022.4.1

version/2022.5.1

version/2022.5.2

version/2022.6.2

version/2022.7.2

version/2022.8.1

version/2022.8.2

version/2022.9.0

version/2023.*

version/2023.10.0

version/2023.2.1

version/2023.5.1

version/2023.6.0

version/2023.8.0

version/2023.8.1

version/2023.8.2

version/2026.*

version/2026.2.0

version/2026.2.0-rc1

version/2026.2.0-rc2

version/2026.2.0-rc3

version/2026.2.0-rc4

version/2026.2.0-rc5

version/2026.2.1

version/2026.2.1-rc1

version/2026.2.2

version/2026.2.2-rc1

version/2026.2.2-rc2

version/2026.2.2-rc3

version/2026.2.3

version/2026.2.3-rc1

version/2026.2.4

version/2026.2.5

version/2026.5.0

version/2026.5.2

version/2026.5.3

version/2026.5.4

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54730.json"