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CVE-2026-107445— Rubygem-katello: katello flatpak remote repositories api cross-organization authorization bypass

Quick assessment

Affected
Red Hat Red Hat Hardened Images
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

发现 Katello 中的一个缺陷，其 Flatpak 远程仓库 API 在使用标识符访问 Flatpak 远程仓库时，未能正确执行授权检查。拥有查看某一组织中 Flatpak 远程仓库权限的已认证用户，可能能够访问属于其他组织的 Flatpak 远程仓库信息。同步（mirror）操作使用了相同的无范围限制（unscoped）查找方式，这可能导致用户能够创建一个属于其有编辑权限的产品中的仓库，该仓库配置了另一组织的 Flatpak 远程 URL 并存储了对应的远程凭据。

CVSS 5.4 · Medium
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I. Basic Information for CVE-2026-107445

Vulnerability Information
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Vulnerability Title
Rubygem-katello: katello flatpak remote repositories api cross-organization authorization bypass
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Red Hat Hardened Images - cpe:/a:redhat:hummingbird:1
Red Hat Red Hat Satellite 6 - cpe:/a:redhat:satellite:6
Red Hat Red Hat Satellite 6 - cpe:/a:redhat:satellite:6

II. Public POCs for CVE-2026-107445

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III. Intelligence Information for CVE-2026-107445

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Vendor Advisories for CVE-2026-107445 (2)

Same Patch Batch · Red Hat · 2026-10-08 · 3 CVEs total

CVE-2026-107466 6.1 MEDIUM Flatpak-builder: local file exfiltration via `file
CVE-2026-107444 4.3 MEDIUM Rubygem-katello: katello docker tags repositories api cross-organization authorization byp

IV. Related Vulnerabilities

Same product: Red Hat Hardened Images
Same vendor: Red Hat
Same weakness: CWE-639

V. Comments for CVE-2026-107445

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