RCE in Red Hat Satellite 6
CVE-2026-1961
A flaw was found in Foreman. A remote attacker could exploit a command injection vulnerability in Foreman's WebSocket proxy implementation. This vulnerability arises from the system's use of unsanitized hostname values from compute resource providers when constructing shell commands. By operating a malicious compute resource server, an attacker could achieve remote code execution on the Foreman server when a user accesses VM VNC console functionality. This could lead to the compromise of sensitive credentials and the entire managed infrastructure.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.014 (71.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000
Affected products
- Red Hat Satellite 6
- Red Hat Satellite 6.16 For Rhel 8 — versions 0:3.12.0.14-1.el8sat
- Red Hat Satellite 6.16 For Rhel 9 — versions 0:3.12.0.14-1.el9sat
- Red Hat Satellite 6.17 For Rhel 9 — versions 0:3.14.0.14-1.el9sat, 0:0.1.23-0.3.el9pc, 0:1.2.0-0.1.el9pc
- Red Hat Satellite 6.18 For Rhel 9 — versions 0:3.16.0.12-1.el9sat
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/errata/RHSA-2026:5968 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:5970 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:5971 (vendor-advisory)
- access.redhat.com/security/cve/CVE-2026-1961 (vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking)
- af854a3a-2127-422b-91ae-364da2661108
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Frequently asked questions
- What is CVE-2026-1961?
- CVE-2026-1961 is a high-severity vulnerability in Red Hat Satellite 6, classified under OS Command Injection. CVSS score: 8.0/10. Published 2026-03-26.
- How severe is CVE-2026-1961?
- High severity. CVSS v3 base score is 8.0 out of 10.
- Is CVE-2026-1961 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.