Threats tagged 'ghsa-5rr4-8452-hf4v'

The @better-auth/sso plugin versions >=0.1.0 and <1.6.11 contain a server-side request forgery (SSRF) vulnerability via unvalidated OpenID Connect (OIDC) endpoint URLs when skipDiscovery is set to true. Authenticated users can exploit this by registering malicious OIDC providers, causing the server to fetch attacker-controlled URLs. This can lead to reading internal HTTP responses, including cloud metadata services. If trustEmailVerified is enabled, attackers can escalate to account takeover by forging verified email claims that link to existing user accounts. The issue is fixed in version 1.6.11 by validating OIDC endpoint URLs against public routability or trusted origins and tightening schema validation. Workarounds include disabling provider self-registration, restricting access, network egress controls, and disabling trustEmailVerified until patched.