CVE-2026-12515 Katello: missing repository authorization in content_uploads exposes cross-product content existence
Authenticated attackers with edit_products permission can query content existence in unauthorized repositories, leaking information about inaccessible content.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-12515?
CVE-2026-12515 is a medium-severity missing authorization vulnerability in Red Hat Hardened Images, published on 17 Jun 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's of Red Hat Satellite. A content upload functionality where insufficient authorization checks in the ContentUploadsController allowed users with the edit_products permission to query content information for repositories outside the products they were authorized to manage. An authenticated attacker could exploit this issue to determine whether specific content exists within repositories that should otherwise be inaccessible. This issue does not allow unauthorized modification, import, or publication of content.
Weakness: CWE-862
Which versions are affected by CVE-2026-12515?
2 open source packages ship an affected version, including katello.
| Package | Affected | Fixed in |
|---|---|---|
katello RubyGems | All versions | 4.21.0.rc1 |
katello RubyGems | All versions | 4.21.0.rc1 |
How do I fix CVE-2026-12515?
Upgrade katello to 4.21.0.rc1 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-12515 being exploited?
There is no known exploitation of CVE-2026-12515 in the wild and no public exploit code.
Sources
Also known as GHSA-c43c-rf7g-5xpg.