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1 vulnerability found for omniauth by omniauth

CVE-2026-63183 (GCVE-0-2026-63183)

Vulnerability from cvelistv5 – Published: 2026-11-04 19:07 – Updated: 2026-11-05 19:20

Title

OmniAuth: Host Header Injection Vulnerability

Summary

OmniAuth is a flexible authentication system utilizing Rack middleware. Prior to 2.2.0, OmniAuth derives provider callback URLs from request-controlled host information when neither a fixed full_host nor framework-level incoming host validation is configured. A remote unauthenticated client can supply a forged Host header, creating a host header injection risk in applications whose web framework does not verify incoming host headers. Applications using appropriately configured Rails host authorization or a fixed full_host are not affected by this path. This issue is fixed in version 2.2.0.

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:L/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-11-05 19:19 UTC

CWE

CWE-346 - Origin Validation Error

Assigner

GitHub_M CNA

References

2 references

URL	Tags
https://github.com/omniauth/omniauth/security/adv…	x_refsource_CONFIRM
https://github.com/omniauth/omniauth/commit/943b4…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
omniauth	omniauth	Affected: < 2.2.0

Show details on NVD website

JSON

To clipboard

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