# CVE-2026-12515 — Red Hat Satellite 6

> As of 2026-06-18, CVE-2026-12515 is a MEDIUM-severity vulnerability in Red Hat Satellite 6, CVSS v3.1 4.3, EPSS 0.1% (9.5th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-12515 as of 2026-06-18; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-06-18

## What is CVE-2026-12515?

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.

The record classifies CVE-2026-12515 under weakness class [CWE-862](https://intel.threadlinqs.com/cwe/CWE-862). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs low-privilege credentials, needs no user interaction. 2 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 110 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 4.3 — MEDIUM (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N`)
- **EPSS (FIRST):** 0.1% probability of exploitation in the next 30 days, higher than 9.5% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 2.5/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-06-17, last modified 2026-06-18

## Is CVE-2026-12515 being exploited?

It currently carries a trending score of 32 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [Red Hat](https://intel.threadlinqs.com/vendors/red-hat): Hardened Images, Satellite 6

Affected software packages:

- `rubygems:katello` — patched in 4.21.0.rc1

## How to fix CVE-2026-12515

Fixed versions are recorded for 1 package: rubygems:katello 4.21.0.rc1. No vendor patch reference has been recorded for CVE-2026-12515 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-12515

No threat campaign in the Threadlinqs corpus currently references CVE-2026-12515, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on 2026-06-19.

**Third-party advisory**

- [access.redhat.com — vdb entry](https://access.redhat.com/security/cve/CVE-2026-12515)
- [bugzilla.redhat.com — issue tracking](https://bugzilla.redhat.com/show_bug.cgi?id=2489812)

**Other references**

- [github.com](https://github.com/Katello/katello/pull/11712)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-12515
Full detection coverage and IOCs for threats exploiting CVE-2026-12515 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp