CVE-2026-34454— OAuth2 Proxy: Session cookie not cleared when rendering sign-in page

OAuth2 Proxy: Session cookie not cleared when rendering sign-in page

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. A regression introduced in 7.11.0 prevents OAuth2 Proxy from clearing the session cookie when rendering the sign-in page. In deployments that rely on the sign-in page as part of their logout flow, a user may be shown the sign-in page while the existing session cookie remains valid, meaning the browser session is not actually logged out. On shared workstations or devices, a subsequent user could continue to use the previous user's authenticated session. Deployments that use a dedicated logout/sign-out endpoint to terminate sessions are not affected. This issue is fixed in 7.15.2

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

不充分的会话过期机制

OAuth2 Proxy 代码问题漏洞

OAuth2 Proxy是OAuth2 Proxy组织的一款能够提供与Google、Github或其他提供商进行身份验证的反向代理。 OAuth2 Proxy 7.11.0至7.15.2之前版本存在代码问题漏洞，该漏洞源于回归问题导致在呈现登录页面时无法清除会话Cookie，可能导致在共享工作站或设备上，后续用户可继续使用先前用户的认证会话。

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