Is CVE-2026-12515 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-12515 being exploited in the wild.

How severe is CVE-2026-12515?

Medium severity, with a CVSS score of 4.3, published 17 June 2026.

Which products and versions are affected?

katello (RubyGems) ECOSYSTEM:introduced=0,fixed=4.21.0.rc1.

Is there a fix for CVE-2026-12515?

Yes. katello (RubyGems): upgrade to 4.21.0.rc1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-12515 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-12515?

Check whether you run katello (RubyGems) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-12515: Red Hat Satellite Katello missing authorization in ContentUploadsController

CVE-2026-12515 · Severity: medium · CVSS 4.3 · Published 2026-06-17

Red Hat Satellite is a management platform used to deploy and manage infrastructure. A security flaw in its Katello component allows an authenticated user with limited permissions to check for the existence of software content in repositories they are not authorized to access. While this does not allow an attacker to modify or delete data, it results in an unauthorized disclosure of information regarding what software is present on the system.

Technologies: katello (RubyGems). Vendors: RubyGems.

Quick answers

Is CVE-2026-12515 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-12515 being exploited in the wild.
How severe is CVE-2026-12515?: Medium severity, with a CVSS score of 4.3, published 17 June 2026.
Which products and versions are affected?: katello (RubyGems) ECOSYSTEM:introduced=0,fixed=4.21.0.rc1.
Is there a fix for CVE-2026-12515?: Yes. katello (RubyGems): upgrade to 4.21.0.rc1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-12515 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-12515?: Check whether you run katello (RubyGems) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

katello (RubyGems): upgrade to 4.21.0.rc1 or later
```
bundle update katello
```

Technical details

A missing object-level authorization check was identified in Katello's ContentUploadsController. The vulnerability exists because the controller does not enforce product-scoped authorization on the repository_id parameter. An authenticated attacker with 'edit_products' permissions for a specific subset of products can call the /katello/api/v2/repositories/:id/content_uploads endpoint against repositories outside their authorized scope. This allows the attacker to perform an information disclosure attack to determine if specific content exists in restricted repositories, though it does not permit modification, import, or publication of that content.

Affected products

Red Hat Red Hat Satellite 6 6.x
Katello Katello

Identifiers

CVE-2026-12515
GHSA-c43c-rf7g-5xpg

Timeline

2026-04-16: patched: Fix submitted via GitHub pull request 11712
2026-06-17: disclosed: Initial vulnerability report and CVE assignment

References

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