Better-auth: OAuth Proxy Lets An Attacker Sign In As Another User

Am I affected? You may be affected if you use "better-auth" from 1.5.0-beta.12 through versions before 1.7.7 with the OAuth Proxy plugin. You are affected only if all of these are also true: - On a participating environment, the OAuth Proxy plugin has no dedicated "secret", or its "secret" equals...

GHSA-R4XP-PRCW-77QF better-auth: OAuth Proxy lets an attacker sign in as another user

Am I affected? You may be affected if you use better-auth from 1.5.0-beta.12 through versions before 1.7.7 with the OAuth Proxy plugin. You are affected only if all of these are also true: - On a participating environment, the OAuth Proxy plugin has no dedicated secret, or its secret equals that...

better-auth: OAuth Proxy lets an attacker sign in as another user

Am I affected? You may be affected if you use better-auth from 1.5.0-beta.12 through versions before 1.7.7 with the OAuth Proxy plugin. You are affected only if all of these are also true: - On a participating environment, the OAuth Proxy plugin has no dedicated secret, or its secret equals that...

npm: better-auth: OAuth Proxy lets an attacker sign in as another user

npm: better-auth: OAuth Proxy lets an attacker sign in as another user vulnerability discovered by ? in WordPress npm better-auth versions = 1.5.0-beta.12, 1.7.7...

EUVD-2026-101747

Better Auth from 1.5.0-beta.12 before 1.7.7 contains an authentication bypass vulnerability in the OAuth Proxy plugin that allows unauthenticated attackers to sign in as other users by forging encrypted profiles. When the proxy shares the global secret and cookie-stored state is used, attackers c...

CVE-2026-110864

Better Auth from 1.5.0-beta.12 before 1.7.7 contains an authentication bypass vulnerability in the OAuth Proxy plugin that allows unauthenticated attackers to sign in as other users by forging encrypted profiles. When the proxy shares the global secret and cookie-stored state is used, attackers c...

CVE-2026-110864 Better Auth 1.5.0-beta.12 before 1.7.7 Authentication Bypass via OAuth Proxy

Better Auth from 1.5.0-beta.12 before 1.7.7 contains an authentication bypass vulnerability in the OAuth Proxy plugin that allows unauthenticated attackers to sign in as other users by forging encrypted profiles. When the proxy shares the global secret and cookie-stored state is used, attackers c...

CVE-2026-110864 Better Auth 1.5.0-beta.12 before 1.7.7 Authentication Bypass via OAuth Proxy

Better Auth from 1.5.0-beta.12 before 1.7.7 contains an authentication bypass vulnerability in the OAuth Proxy plugin that allows unauthenticated attackers to sign in as other users by forging encrypted profiles. When the proxy shares the global secret and cookie-stored state is used, attackers c...

CVE-2026-110864 Better Auth 1.5.0-beta.12 before 1.7.7 Authentication Bypass via OAuth Proxy

Better Auth from 1.5.0-beta.12 before 1.7.7 contains an authentication bypass vulnerability in the OAuth Proxy plugin that allows unauthenticated attackers to sign in as other users by forging encrypted profiles. When the proxy shares the global secret and cookie-stored state is used, attackers c...

CVE-2026-110864

The Better Auth framework (versions 1.5.0-beta.12 before 1.7.7 ) contains an authentication bypass vulnerability within the OAuth Proxy plugin . The root cause is that attackers can forge encrypted profiles when the proxy shares a global secret and uses cookie-stored state. By obtaining an encryp...

CVE-2026-110864

Better Auth from 1.5.0-beta.12 before 1.7.7 contains an authentication bypass vulnerability in the OAuth Proxy plugin that allows unauthenticated attackers to sign in as other users by forging encrypted profiles. When the proxy shares the global secret and cookie-stored state is used, attackers c...

PT-2026-114178

Name of the Vulnerable Software and Affected Versions Better Auth versions 1.5.0-beta.12 through 1.7.6 Description An authentication bypass exists in the OAuth Proxy plugin. Unauthenticated attackers can sign in as other users by forging encrypted profiles. This occurs when the proxy shares the...

CVE-2026-110864: Improper Authentication

Better Auth from 1.5.0-beta.12 before 1.7.7 contains an authentication bypass vulnerability in the OAuth Proxy plugin that allows unauthenticated attackers to sign in as other users by forging encrypted profiles. When the proxy shares the global secret and cookie-stored state is used, attackers c...

CVE-2026-83589

A flaw was found in oauth-proxy. The application fails to properly validate the destination redirect parameter rd during post-login redirection. A remote attacker can exploit this vulnerability by enticing a user to follow a specially crafted link, resulting in the user being redirected to an...

CVE-2026-83589 Oauth-proxy: open redirect via /\ and /\t bypass in post-login redirect

A flaw was found in oauth-proxy. The application fails to properly validate the destination redirect parameter rd during post-login redirection. A remote attacker can exploit this vulnerability by enticing a user to follow a specially crafted link, resulting in the user being redirected to an...

CVE-2026-83589

A flaw in oauth-proxy allows for an open redirect due to insufficient validation of the destination redirect parameter (rd) during post-login redirection. Specifically, the application may be susceptible to bypasses using // and / sequences. A remote attacker can exploit this by tricking a user i...

CVE-2026-83589

A flaw was found in oauth-proxy. The application fails to properly validate the destination redirect parameter "rd" during post-login redirection. A remote attacker can exploit this vulnerability by enticing a user to follow a specially crafted link, resulting in the user being redirected to an...

EUVD-2026-90589

A flaw was found in oauth-proxy. The application fails to properly validate the destination redirect parameter rd during post-login redirection. A remote attacker can exploit this vulnerability by enticing a user to follow a specially crafted link, resulting in the user being redirected to an...

CVE-2026-83589 Oauth-proxy: open redirect via /\ and /\t bypass in post-login redirect

A flaw was found in oauth-proxy. The application fails to properly validate the destination redirect parameter rd during post-login redirection. A remote attacker can exploit this vulnerability by enticing a user to follow a specially crafted link, resulting in the user being redirected to an...

PT-2026-103760

Name of the Vulnerable Software and Affected Versions oauth-proxy affected versions not specified Description The application fails to properly validate the destination redirect parameter rd during post-login redirection. A remote attacker can exploit this by enticing a user to follow a specially...