CVE-2026-73683

Laravel Socialite's Facebook provider contains an authentication bypass vulnerability that allows unauthenticated attackers to replay captured OIDC idtokens by exploiting the missing nonce claim validation in the getUserByOIDCToken function within FacebookProvider.php. Attackers who obtain a vali...

CVE-2026-73683

CVE-2026-73683 affects Laravel Socialite’s Facebook provider. The flaw allows unauthenticated attackers to replay captured OIDC id_tokens via a missing nonce validation in FacebookProvider.php’s getUserByOIDCToken(), so a valid, unexpired id_token for the same Facebook App ID can be submitted to ...

CVE-2026-73683

Laravel Socialite's Facebook provider contains an authentication bypass vulnerability that allows unauthenticated attackers to replay captured OIDC idtokens by exploiting the missing nonce claim validation in the getUserByOIDCToken function within FacebookProvider.php. Attackers who obtain a vali...