CVE-2026-82411 Objects API: Cross-object-type authorization bypass on the object history-detail endpoint
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-82411?
CVE-2026-82411 is a medium-severity vulnerability in maykinmedia open-object, published on 28 Oct 2026.
Official description
Open Object provides an API and admin interface to manage objects and object types. From 2.4.3 until 2.5.1, 3.6.2, 4.0.2, and 4.1.1, a token scoped to read one ObjectType can read the full versioned record of an object of any other ObjectType via the history-detail endpoint `GET /api/v2/objects/{uuid}/{index}`. The `history_detail` action in `src/objects/api/v2/views.py` calls `self.get_queryset()` and `get_object_or_404` directly instead of `self.get_object()`, so `check_object_permissions` and the per-object check in `ObjectTypeBasedPermission.has_object_permission` are not invoked. The queryset's `filter_for_token` applies only to the list and search actions, while `ObjectTypeBasedPermission.has_permission` allows non-create actions, leaving neither check to constrain history-detail records to the token's permitted ObjectType. The normal retrieve endpoint returns 403 for the same unauthorized object, and the sibling history action enforces the grant. Any valid non-superuser API token with a read grant on at least one ObjectType can therefore disclose another ObjectType's complete versioned object `data`, which can include citizen or case records and sensitive identifiers in government deployments. This issue is fixed in versions 2.5.1, 3.6.2, 4.0.2, and 4.1.1.
Weakness: CWE-639
Which versions are affected by CVE-2026-82411?
How do I fix CVE-2026-82411?
No fix has been published for CVE-2026-82411 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-82411 being exploited?
There is no known exploitation of CVE-2026-82411 in the wild and no public exploit code.
Sources
Also known as GHSA-55w6-rqp5-j5wx.