Public vulnerability disclosure
CVE-2026-1961
Forman: foreman: remote code execution via command injection in websocket proxy
publishedCWE-78
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.
Technical severity8.0 highCVSS 3.1 · CNA: redhat
Published2026-03-26Source updated 2026-11-03
Collected2026-11-032 attributed sources
Fixes and workarounds
Workaround
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Source: CNA: redhatFix
RHSA-2026:5971: Red Hat Satellite 6.16 for RHEL 8, Red Hat Satellite 6.16 for RHEL 9 RHSA-2026:5970: Red Hat Satellite 6.17 for RHEL 9 RHSA-2026:5968: Red Hat Satellite 6.18 for RHEL 9
Source: ADP: redhat-SADPWorkaround
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Source: ADP: redhat-SADPAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| Red Hat Satellite 6.16 for RHEL 8 Red Hat foreman
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:3.12.0.14-1.el8sat; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Satellite 6.16 for RHEL 9 Red Hat foreman
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:3.12.0.14-1.el9sat; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Satellite 6.17 for RHEL 9 Red Hat foreman
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:3.14.0.14-1.el9sat; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Satellite 6.17 for RHEL 9 Red Hat libcomps
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:0.1.23-0.3.el9pc; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Satellite 6.17 for RHEL 9 Red Hat python-brotli
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:1.2.0-0.1.el9pc; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Satellite 6.17 for RHEL 9 Red Hat python-django
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:4.2.28-0.1.el9pc; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Satellite 6.17 for RHEL 9 Red Hat python-pulp-container
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:2.22.3-1.el9pc; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Satellite 6.17 for RHEL 9 Red Hat python-pulp-rpm
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:3.27.10-2.el9pc; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Satellite 6.17 for RHEL 9 Red Hat rubygem-fog-kubevirt
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:1.5.1-1.el9sat; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Satellite 6.17 for RHEL 9 Red Hat rubygem-foreman_kubevirt
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:0.4.3-1.el9sat; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Satellite 6.17 for RHEL 9 Red Hat rubygem-katello
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:4.16.0.14-1.el9sat; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Satellite 6.17 for RHEL 9 Red Hat rubygem-rubyipmi
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:0.13.0-1.el9sat; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Satellite 6.17 for RHEL 9 Red Hat satellite
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:6.17.7-1.el9sat; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Satellite 6.17 for RHEL 9 Red Hat yggdrasil-worker-forwarder
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:0.0.3-4.el9sat; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Satellite 6.18 for RHEL 9 Red Hat foreman
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:3.16.0.12-1.el9sat; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Satellite 6 Red Hat satellite-utils:el8/foreman
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Satellite 6.16 for RHEL 8 Red Hat foreman
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:3.12.0.14-1.el8sat; < * (unaffected, rpm)
Other versions: affected |
ADP: redhat-SADP |
| Red Hat Satellite 6.16 for RHEL 9 Red Hat foreman
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:3.12.0.14-1.el9sat; < * (unaffected, rpm)
Other versions: affected |
ADP: redhat-SADP |
| Red Hat Satellite 6.17 for RHEL 9 Red Hat foreman
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:3.14.0.14-1.el9sat; < * (unaffected, rpm)
Other versions: affected |
ADP: redhat-SADP |
| Red Hat Satellite 6.17 for RHEL 9 Red Hat libcomps
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:0.1.23-0.3.el9pc; < * (unaffected, rpm)
Other versions: affected |
ADP: redhat-SADP |
| Red Hat Satellite 6.17 for RHEL 9 Red Hat python-brotli
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:1.2.0-0.1.el9pc; < * (unaffected, rpm)
Other versions: affected |
ADP: redhat-SADP |
| Red Hat Satellite 6.17 for RHEL 9 Red Hat python-django
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:4.2.28-0.1.el9pc; < * (unaffected, rpm)
Other versions: affected |
ADP: redhat-SADP |
| Red Hat Satellite 6.17 for RHEL 9 Red Hat python-pulp-container
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:2.22.3-1.el9pc; < * (unaffected, rpm)
Other versions: affected |
ADP: redhat-SADP |
| Red Hat Satellite 6.17 for RHEL 9 Red Hat python-pulp-rpm
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:3.27.10-2.el9pc; < * (unaffected, rpm)
Other versions: affected |
ADP: redhat-SADP |
| Red Hat Satellite 6.17 for RHEL 9 Red Hat rubygem-fog-kubevirt
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:1.5.1-1.el9sat; < * (unaffected, rpm)
Other versions: affected |
ADP: redhat-SADP |
| Red Hat Satellite 6.17 for RHEL 9 Red Hat rubygem-foreman_kubevirt
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:0.4.3-1.el9sat; < * (unaffected, rpm)
Other versions: affected |
ADP: redhat-SADP |
| Red Hat Satellite 6.17 for RHEL 9 Red Hat rubygem-katello
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:4.16.0.14-1.el9sat; < * (unaffected, rpm)
Other versions: affected |
ADP: redhat-SADP |
| Red Hat Satellite 6.17 for RHEL 9 Red Hat rubygem-rubyipmi
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:0.13.0-1.el9sat; < * (unaffected, rpm)
Other versions: affected |
ADP: redhat-SADP |
| Red Hat Satellite 6.17 for RHEL 9 Red Hat satellite
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:6.17.7-1.el9sat; < * (unaffected, rpm)
Other versions: affected |
ADP: redhat-SADP |
| Red Hat Satellite 6.17 for RHEL 9 Red Hat yggdrasil-worker-forwarder
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:0.0.3-4.el9sat; < * (unaffected, rpm)
Other versions: affected |
ADP: redhat-SADP |
| Red Hat Satellite 6.18 for RHEL 9 Red Hat foreman
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:3.16.0.12-1.el9sat; < * (unaffected, rpm)
Other versions: affected |
ADP: redhat-SADP |
| Red Hat Satellite 6 Red Hat satellite-utils:el8/foreman
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
ADP: redhat-SADP |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 8.0 high |
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H | CNA: redhat |
| 3.1 / 8.0 high |
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H | ADP: redhat-SADP |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://access.redhat.com/errata/RHSA-2026:5968CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:5970CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:5971CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2026-1961CNA: redhat · vdb-entry, x_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2437036CNA: redhat · issue-tracking, x_refsource_REDHAT
- http://www.openwall.com/lists/oss-security/2026/03/27/3ADP: CVE
- https://access.redhat.com/security/cve/CVE-2026-1961ADP: redhat-SADP · vdb-entry, x_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2437036ADP: redhat-SADP · issue-tracking, x_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1961.jsonADP: redhat-SADP · x_sadp-csaf-vex
- https://access.redhat.com/errata/RHSA-2026:5971ADP: redhat-SADP · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:5970ADP: redhat-SADP · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:5968ADP: redhat-SADP · vendor-advisory, x_refsource_REDHAT
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