AstronRPA through 1.1.6 Cross-Tenant Shared Variable Disclosure via get-batch-shared-var

AstronRPA through 1.1.6 contains a missing tenant authorization check in robot-service that allows authenticated users to read other tenants' shared variables via the get-batch-shared-var endpoint. Attackers can enumerate sequential shared variable IDs and decrypt all-users variables re-encrypted with their own tenant key to recover other tenants' credentials in plaintext.