API Shield - New BOLA Vulnerability Detection
API Shield now automatically detects and highlights Broken Object Level Authorization (BOLA) attacks on managed API endpoints, including enumeration and pollution attacks. Enterprise customers can view attack details across Security Overview, Endpoint details, and Security Analytics to identify affected endpoints and attacker sessions.
Now, API Shield automatically searches for and highlights Broken Object Level Authorization (BOLA) attacks on managed API endpoints. API Shield will highlight both BOLA enumeration attacks and BOLA pollution attacks, telling you what was attacked, by who, and for how long.
You can find these attacks three different ways: Security Overview, Endpoint details, or Security Analytics. If these attacks are not found on your managed API endpoints, there will not be an overview card or security analytics suspicious activity card.
On the Security Overview card, select the suggestion > View details to review the top attacked API endpoints, endpoint details, and the attack summary:


From the endpoint details, you can select View attack to find details about the BOLA attacker’s sessions.
From here, select View in Analytics to observe attacker traffic over time for the last seven days.
Your search will filter to traffic on that endpoint in the last seven days, along with the malicious session IDs found in the attack. Session IDs are hashed for privacy and will not be found in your origin logs. Refer to IP and JA4 fingerprint to cross-reference behavior at the origin.
At any time, you can also start your investigation into attack traffic from Security Analytics by selecting the suspicious activity card.
We urge you to take all of this client information to your developer team to research the attacker behavior and ensure any broken authorization policies in your API are fixed at the source in your application, preventing further abuse.
In addition, this release marks the end of the beta period for these scans. All Enterprise customers with API Shield subscriptions will see these new attacks if found on their zone.
Source: original entry ↗
More from Cloudflare
Follow Cloudflare to get its new changes in your feed and email digest.
Cloudflare One Client for macOS 2026.8.2100.0
GA release for macOS Cloudflare One Client with improved split tunnel handling that no longer briefly blocks traffic during reconnects, support for non-RFC 1918 local IPv4 networks, faster connects with lower memory use, and numerous reliability fixes across DNS, reauthentication, and client stability.
Cloudflare One Client for Windows 2026.8.2100.0
This GA release improves split tunnel reliability, adds support for non-RFC 1918 local networks, optimizes connection performance with faster reconnections and lower memory usage, and includes numerous bug fixes for DNS, registration, and network handling. The client now features a service recovery mechanism that automatically restarts on system unlock and better handles large hosts files without blocking traffic.
Cloudflare One Client for Linux 2026.8.2100.0
New GA release for Linux with improved split tunnel handling that no longer briefly blocks traffic during reconnects, support for non-RFC 1918 local IPv4 networks, faster tunnel reconnections, and lower memory usage. Includes numerous stability and reliability fixes for DNS, reconnection behavior, and crash issues.