CVE-2026-79348 in KitchenAsty
Summary
by MITRE • 09/29/2026
KitchenAsty through 0.3.0 contains a broken object level authorization (IDOR) vulnerability in the reservations API. The endpoint GET /api/reservations/:id in packages/server applies the authenticate middleware but performs no ownership or role check, and the getReservation handler in packages/server/src/controllers/reservation.controller.ts returns the record retrieved by the client-supplied identifier without comparing reservation.customerId to the authenticated principal
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Analysis
by VulDB Data Team • 09/29/2026
The vulnerability identified in KitchenAsty versions through 0.3.0 represents a critical failure in access control mechanisms, specifically categorized as an Insecure Direct Object Reference or Broken Access Control issue within the application's reservations API. This flaw resides in the GET /api/reservations/:id endpoint located in the server package of the application architecture. While the middleware stack correctly invokes authentication procedures to verify the identity of the requesting user, it fails to implement any subsequent authorization logic to validate whether that authenticated user has permission to access the specific resource being requested. The core technical defect lies within the getReservation handler defined in packages/server/src/controllers/reservation.controller.ts, which retrieves a reservation record based solely on an identifier supplied by the client and returns this data without performing any comparison between the reservation's associated customer ID and the identity of the authenticated principal making the request.
From a technical perspective, this implementation violates fundamental principles of secure software design regarding object-level permissions. By relying exclusively on the presence of authentication tokens rather than verifying ownership or role-based access rights, the application assumes that any valid user can view any reservation record if they possess its unique identifier. This oversight allows an attacker to manipulate the :id parameter in the URL path to iterate through sequential identifiers and retrieve sensitive information belonging to other users. The absence of a check ensuring that the authenticated principal matches the customerId field of the retrieved reservation creates a direct pathway for unauthorized data access, effectively bypassing any intended privacy boundaries established by the application's business logic.
The operational impact of this vulnerability is severe, as it leads to a comprehensive breach of user confidentiality and potential regulatory non-compliance depending on the nature of the stored data. Attackers can exploit this flaw to perform mass enumeration attacks, systematically harvesting reservation details such as customer names, contact information, booking dates, payment statuses, and potentially other personally identifiable information associated with each record. This exposure not only compromises individual privacy but also undermines trust in the platform's security posture. Furthermore, if the application integrates third-party services or handles sensitive financial data within these records, the leakage could facilitate further social engineering attacks or identity theft against affected customers. The vulnerability aligns directly with CWE-639, which describes authorization issues where access to resources is controlled by a value that can be manipulated by an attacker, and maps to MITRE ATT&CK technique T1078, specifically relating to valid accounts being used for unauthorized data exfiltration through improper access control mechanisms.
To mitigate this vulnerability, developers must immediately implement robust object-level authorization checks within the getReservation handler. This involves retrieving the reservation record using the provided identifier and then explicitly comparing the customerId field of that record against the user ID extracted from the authenticated session or token payload. If these values do not match, the server should return a 403 Forbidden status code rather than exposing the data. Additionally, it is advisable to adopt a principle of least privilege by ensuring that API endpoints only expose necessary fields and to implement rate limiting on the reservations endpoint to prevent rapid enumeration attempts. Long-term remediation strategies should include integrating an authorization middleware or library that automatically validates access rights based on resource ownership before any controller logic executes, thereby reducing the risk of similar oversights in other parts of the application codebase.