Critical-Severity Flaw in Red Hat Satellite 6.19 for RHEL 9 Tracked as CVE-2026-96658
A newly published critical vulnerability in Red Hat Satellite 6.19 for RHEL 9 carries a CVSS score of 9.9. Here is what is affected and how to respond.
Key points
- CVE-2026-96658 affects Red Hat Satellite 6.19 for RHEL 9.
- CVSS 9.9 (Critical).
- No exploitation confirmed yet.
Red Hat Satellite 6.19 for RHEL 9 is affected by CVE-2026-96658, a security flaw that the National Vulnerability Database rates 9.9 out of 10.
At a glance
- CVE
- CVE-2026-96658
- Product
- Red Hat Satellite 6.19 for RHEL 9
- CVSS
- 9.9 Critical
- Weakness
- —
- Exploited
- No known exploitation
What is the vulnerability?
The NVD entry states: A flaw was found in Foreman. An authenticated attacker with low-level permissions can achieve remote code execution (RCE) by bypassing the safemode sandbox within the templating engine. Due to improper handling of delegated methods, an attacker can append unauthorized functions to the allowed execution list, enabling them to run arbitrary commands on the hosting server.
Affected versions
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat Satellite 6.19 for RHEL 9 | see advisory |
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
Is it being exploited?
There is no public confirmation of exploitation at the time of publication. It does not appear in CISA's Known Exploited Vulnerabilities catalog. We will update this report if that changes.
What should you do?
- Identify whether the affected product and versions run in your environment.
- Apply the vendor update listed in the advisory as soon as it is available.
- Limit network exposure of the affected service until it is patched.
- Monitor the vendor advisory for updated guidance or exploitation reports.
What to do and how to stay safe: CVE-2026-96658
- Patch scores alone ignore context like network exposure and asset criticality.
- You must map vulnerabilities to specific business risks to prioritize correctly.
- Continuous exposure data replaces static scanning for accurate prioritization.
Prioritize vulnerabilities by actual exploitability and business impact, not by theoretical severity scores. Update your asset context and exposure data continuously to maintain accurate risk rankings.
Step-by-step guide: Risk Based Vulnerability Management: Prioritize Fixes by Actual Threat
General security guidance from the Threat Times newsroom. It is not confirmed advice from the organisations named in this story.
Frequently asked questions
What is CVE-2026-96658?
CVE-2026-96658 is a security vulnerability in Red Hat Satellite 6.19 for RHEL 9.
How severe is CVE-2026-96658?
It has a CVSS score of 9.9 Critical.
Is CVE-2026-96658 being exploited?
There is no public confirmation of exploitation at the time of publication.
