cvedb.io
CVE-2025-54576
CRITICAL · CVSS 9.1
EPSS exploitation probability: 0%
Published 2025-07-30T20:15:37.677 · Last modified 2026-06-17T09:40:20.403

Summary

OAuth2-Proxy is an open-source tool that can act as either a standalone reverse proxy or a middleware component integrated into existing reverse proxy or load balancer setups. In versions 7.10.0 and below, oauth2-proxy deployments are vulnerable when using the skip_auth_routes configuration option with regex patterns. Attackers can bypass authentication by crafting URLs with query parameters that satisfy configured regex patterns, allowing unauthorized access to protected resources. The issue stems from skip_auth_routes matching against the full request URI. Deployments using skip_auth_routes with regex patterns containing wildcards or broad matching patterns are most at risk. This issue is fixed in version 7.11.0. Workarounds include: auditing all skip_auth_routes configurations for overl

Affected products

oauth2_proxy_project — oauth2_proxy

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.