Bug 2547766 (CVE-2026-107445)

Summary:	CVE-2026-107445 rubygem-katello: katello: katello: Katello Flatpak Remote Repositories API cross-organization authorization bypass
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	anthomas, ehelms, ggainey, jpasqual, juwatts, mdellweg, mhulan, nmoumoul, osousa, pcreech, rchan, smallamp, tmalecek
Target Milestone:	---	Keywords:	Security
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Hardware:	All
OS:	Linux
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Doc Text:	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.	Story Points:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
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Description OSIDB Bzimport 2026-10-08 03:31:50 UTC

A flaw was found in Katello. The Flatpak Remote Repositories API resolves records with an unscoped FlatpakRemoteRepository.find in a before_action used by show and mirror, while the index path correctly uses FlatpakRemoteRepository.readable. An authenticated user with view_flatpak_remotes in one organization can read another organization's flatpak remote repository metadata. The same unscoped finder backs the mirror action, which creates a repository in a product the attacker can edit using the victim organization's flatpak remote registry URL and stored remote credentials (username/token). Reported via PSIRTSUPT-25121.