Description
OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. Versions prior to 7.15.2 contain a configuration-dependent authentication bypass in deployments where OAuth2 Proxy is used with an auth_request-style integration (such as nginx auth_request) and either --ping-user-agent is set or --gcp-healthchecks is enabled. In affected configurations, OAuth2 Proxy treats any request with the configured health check User-Agent value as a successful health check regardless of the requested path, allowing an unauthenticated remote attacker to bypass authentication and access protected upstream resources. Deployments that do not use auth_request-style subrequests or that do not enable --ping-user-agent/--gcp-healthchecks are not affected. This issue is fixed in 7.15.2.
INFO
Published Date :
2026-04-14T22:14:38.937Z
Last Modified :
2026-04-15T17:43:30.711Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2026-34457 vulnerability.
| Vendors | Products |
|---|---|
| Oauth2 Proxy Project |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2026-34457.
