CVE-2026-32821 API Collection Impersonation Via user_email And Missing Object- Level Authorization
Authenticated users can impersonate others to read or modify collections due to missing object-level authorization checks in the API.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-32821?
CVE-2026-32821 is a high-severity missing authorization vulnerability in datacycle-engine dataCycle-CORE, published on 20 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
dataCycle is a data management system for centrally storing, managing, searching, finding, and distributing data. In dataCycle-CORE, the module handling core processing and framework rules, before and including version 25.07.3, any authenticated API user who has their own access token can ask the collection API to evaluate permissions as a different user by supplying `user_email`. If the target user has collections, this can expose those collections through the API. In V4, once a collection id is known, the same controller also offers `add_item` and `remove_item` routes without any object-level `authorize!` checks, creating a likely cross-user modification path. This is patched in version 26.06.08.
Weakness: CWE-285
Which versions are affected by CVE-2026-32821?
How do I fix CVE-2026-32821?
No fix has been published for CVE-2026-32821 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-32821 being exploited?
There is no known exploitation of CVE-2026-32821 in the wild and no public exploit code.