Topic starter
18/08/2026 2:35 pm
TL;DR: Broken Object-Level Authorization, or BOLA, lets attackers change object IDs in API requests and reach data they are not authorised to access, creating direct breach and privacy risk, according to Pynt. The control gap is not authentication alone but per-object authorisation enforced on every request.
Editorial analysis by NHI Mgmt Group, based on content published by Pynt: “A Desi-Inspired Journey Through Broken Object-Level Authorization (BOLA)”.
Key questions
Q: What breaks when function-level authorization is missing in APIs?
A: The application can allow authenticated users to perform actions they were never meant to control.
Q: Why can broken object-level authorization still happen when authentication is strong?
A: Because authentication proves identity, not permission to each object.
Q: What are the signs that an API endpoint is vulnerable to BOLA?
A: Common signs include changing an ID in a request and receiving another user’s data, success when incrementing identifiers, or inconsistent authorization checks across similar endpoints.
Practitioner guidance
- Enforce server-side object checks Validate the caller’s entitlement to each specific object before every read, update, or delete operation.
- Remove predictable object references Use opaque identifiers where appropriate, but treat them as a hardening measure rather than a control.
- Test every object-returning endpoint Build API tests that attempt cross-user and cross-role access to records, profiles, and transactions.
Bottom line: BOLA exposes a control gap where APIs check identity but fail to verify permission to the specific object requested.
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18/08/2026 3:21 pm
Broken object-level authorization is an application design failure, not a login problem. The article correctly separates authentication from authorization, and that distinction is the heart of the issue. When the application trusts object identifiers without checking entitlement on the server, every authenticated session becomes a potential data-disclosure path. Practitioners should treat object-level enforcement as a core control, not a secondary coding detail.
A few things that frame the scale:
- Only 44% of developers are reported to follow security best practices for secrets management, exposing a significant developer behaviour gap, according to the State of Secrets in AppSec.
A question worth separating out:
Q: Should organisations rely on RBAC alone to prevent BOLA?
A: No. RBAC helps define role-based access, but BOLA appears when the application fails to validate whether a role can access the specific object in the request. Teams need role rules, ownership checks, tenant scoping, and endpoint testing together, otherwise a valid role can still reach the wrong record.
👉 Read our full editorial: BOLA exposes API data when object-level checks are missing