Broken Object Level Authorization in the Wild: An Empirical Taxonomy from 100+ Bug Bounty Disclosures

Broken Object Level Authorization BOLA is consistently ranked the most critical API security vulnerability, yet the existing literature remains almost entirely conceptual. This paper presents one of the first large-scale empirical analyses of BOLA in publicly disclosed bug bounty reports. We...

EUVD-2026-22303

A Broken Object-Level Authorization BOLA in the /Contact/Persons/PersonController.php endpoint of Webkul Krayin CRM v2.2.x allows authenticated attackers to arbitrarily read, modify, and permanently delete any contact owned by other users via supplying a crafted GET request...

CVE-2026-38529

A Broken Object-Level Authorization BOLA in the /Settings/UserController.php endpoint of Webkul Krayin CRM v2.2.x allows authenticated attackers to arbitrarily reset user passwords and perform a full account takeover via supplying a crafted HTTP request...

CVE-2026-38530

A Broken Object-Level Authorization BOLA in the /Controllers/Lead/LeadController.php endpoint of Webkul Krayin CRM v2.2.x allows authenticated attackers to arbitrarily read, modify, and permanently delete any lead owned by other users via supplying a crafted GET request...

CVE-2026-38529

A Broken Object-Level Authorization BOLA in the /Settings/UserController.php endpoint of Webkul Krayin CRM v2.2.x allows authenticated attackers to arbitrarily reset user passwords and perform a full account takeover via supplying a crafted HTTP request...

PT-2026-32683

A Broken Object-Level Authorization BOLA in the /Settings/UserController.php endpoint of Webkul Krayin CRM v2.2.x allows authenticated attackers to arbitrarily reset user passwords and perform a full account takeover via supplying a crafted HTTP request...

CVE-2026-38529

A Broken Object-Level Authorization BOLA in the /Settings/UserController.php endpoint of Webkul Krayin CRM v2.2.x allows authenticated attackers to arbitrarily reset user passwords and perform a full account takeover via supplying a crafted HTTP request...

API Security for AI Agents: Why Protection Has Never Been More Important.

For years, a lot of risky APIs survived simply because they were hard to find. They weren’t documented. Only a handful of engineers knew the endpoints. And if an attacker wanted to abuse them, they had to spend real time reverse‑engineering traffic and guessing how things worked. That “security b...

GHSA-564F-WX8X-878H Vikunja read-only users can delete project background images via broken object-level authorization

Summary The DELETE /api/v1/projects/:project/background endpoint checks CanRead permission instead of CanUpdate, allowing any user with read-only access to a project to permanently delete its background image. Details The RemoveProjectBackground handler pkg/modules/background/handler/background.g...

GO-2026-4595 Non-recursive certificate listing bypasses per-object authorization and leaks all fingerprints in github.com/canonical/lxd

Non-recursive certificate listing bypasses per-object authorization and leaks all fingerprints in github.com/canonical/lxd...

PT-2026-23821

We at Tachyon found an auth bypass in MLflow https://tachyon.so/blog/cve-2025-14297-mlflow-authorization-bypass: 1. Black-box scanners would need to discover the right users, roles, and state transitions, then generate specific request sequences that trigger a gap: a combinatorial problem that...

Exploit for CVE-2026-24134

CVE-2026-24134-PoC Overview This repository contains the...

CVE-2025-63783

A Broken Object Level Authorization BOLA vulnerability was discovered in the tRPC project mutation APIs update, delete, add/remove tag of the Onlook web application 0.2.32. The vulnerability exists because the API fails to verify the ownership or membership of the currently authenticated user for...

API Attack Awareness: Broken Object Level Authorization (BOLA) – Why It Tops the OWASP API Top 10

For this Cybersecurity Awareness Month, we thought it important to draw attention to some of the most common and dangerous API vulnerabilities. This week, we’re starting with Broken Object Level Authorization BOLA. BOLA vulnerabilities top the OWASP API Top Ten. And for good reason: they’re...

The API Battleground: Why APIs are the new frontline—and how to stop the stealthiest attacks

APIs used to be the quiet backstage crew that made apps feel magical. Now attackers have learned the script — they walk onstage, deliver perfectly polite lines, and walk off with the props. In H1 2025 Imperva observed 40,000+ API incidents across 4,000+ monitored environments , including an...

CVE-2022-43859

IBM Navigator for i 7.3, 7.4, and 7.5 could allow an authenticated user to obtain sensitive information for an object they are authorized to but not while using this interface. By performing a UNION based SQL injection an attacker could see file permissions through this interface. IBM X-Force ID:...

CVE-2024-55072

A Broken Object Level Authorization vulnerability in the component /api/users/user-id of hay-kot mealie v2.2.0 allows users to edit their own profile in order to give themselves more permissions or to change their household...

CVE-2024-55073

Vulnerability overview (CVE-2024-55073): hay-kot mealie v2.2.0 has a Broken Object Level Authorization on the /api/users/{user-id} endpoint that lets a user edit their own profile to grant more permissions or change their household. Root cause: improper enforcement of access controls on user-id s...

OWASP TOP 10 API Security Risks: 2023!

The OWASP Top 10 API Security Risks 2023 has arrived! OWASP's API Top 10 is always a highly anticipated release and can be a key component of API security preparedness for the year. As we discussed in API Security Best Practices for a Changing Attack Surface, API usage continues to skyrocket. As ...

API Security is Necessary to Stop Threats that WAFs and Bot Protection Cannot

Today, there are still API security threats that most WAFs and Advanced Bot Protection solutions cannot manage. In this post, we’ll explain these new types of threats and make some recommendations for features you need within solutions to protect your APIs. When a bad actor makes a completely val...