Go/github.com/oauth2-proxy/oauth2-proxy CVE-2025-54576: critical 9.1, EPSS 1.20%

OAuth2-Proxy has authentication bypass in oauth2-proxy skip_auth_routes due to Query Parameter inclusion in github.com/oauth2-proxy/oauth2-proxy

Action: No fix published. Pin and monitor.

Affected

Fixed versions

No fixed version in the source.

Sources

• osv: GO-2025-3833
• nvd: CVE-2025-54576
• https://github.com/oauth2-proxy/oauth2-proxy/security/advisories/GHSA-7rh7-c77v-6434
• https://github.com/oauth2-proxy/oauth2-proxy/commit/9ffafad4b2d2f9f7668e5504565f356a7c047b77
• https://github.com/oauth2-proxy/oauth2-proxy/blob/f4b33b64bd66ad28e9b0d63bea51837b83c00ca1/oauthproxy.go#L582-L584
• https://github.com/oauth2-proxy/oauth2-proxy/blob/f4b33b64bd66ad28e9b0d63bea51837b83c00ca1/pkg/requests/util/util.go#L37-L44
• https://github.com/oauth2-proxy/oauth2-proxy/releases/tag/v7.11.0
• https://oauth2-proxy.github.io/oauth2-proxy/configuration/overview/#proxy-options

CVE-2025-54576 · published 2025-08-11T17:24:51Z · modified 2026-02-04T03:37:20.345640Z · JSON