CVE-2026-107445 Rubygem-katello: katello: katello: katello flatpak remote repositories api cross-organization authorization bypass
Authenticated users can bypass organization boundaries to read or modify flatpak remote repository data across different organizations.
- 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-2026-107445?
CVE-2026-107445 is a medium-severity missing authorization vulnerability in Red Hat Hardened Images, published on 8 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw was found in Katello where the Flatpak Remote Repositories API does not properly enforce authorization when accessing a flatpak remote repository by identifier. An authenticated user with permission to view flatpak remotes in one organization may be able to access flatpak remote repository information belonging to another organization. The same unscoped lookup is used by the mirror action, which may allow creating a repository in a product the user can edit that is configured with another organization's flatpak remote URL and stored remote credentials.
Weakness: CWE-639
Which versions are affected by CVE-2026-107445?
How do I fix CVE-2026-107445?
No fix has been published for CVE-2026-107445 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-2026-107445 being exploited?
There is no known exploitation of CVE-2026-107445 in the wild and no public exploit code.
Sources
Also known as GHSA-64g2-rj4q-r59g.