Foreman WS Proxy Command Injection via Unsanitized Hostname
CVE-2026-1961 Published on March 26, 2026

Forman: foreman: remote code execution via command injection in websocket proxy
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.

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Vulnerability Analysis

CVE-2026-1961 can be exploited with network access, requires user interaction and a small amount of user privileges. This vulnerability is considered to have a low attack complexity. Public availability of a proof of concept (POC) exploit exists for CVE-2026-1961. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
LOW
User Interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Timeline

Reported to Red Hat.

Made public. 49 days later.

Weakness Type

What is a Shell injection Vulnerability?

The software constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

CVE-2026-1961 has been classified to as a Shell injection vulnerability or weakness.


Products Associated with CVE-2026-1961

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Red Hat Satellite
 
Red Hat Satellite Maintenance
 
Red Hat Satellite Capsule
 
Red Hat Satellite Utils
 

Affected Versions

Red Hat Satellite 6.16 for RHEL 8: Red Hat Satellite 6.16 for RHEL 9: Red Hat Satellite 6.17 for RHEL 9: Red Hat Satellite 6.17 for RHEL 9: Red Hat Satellite 6.17 for RHEL 9: Red Hat Satellite 6.17 for RHEL 9: Red Hat Satellite 6.17 for RHEL 9: Red Hat Satellite 6.17 for RHEL 9: Red Hat Satellite 6.17 for RHEL 9: Red Hat Satellite 6.17 for RHEL 9: Red Hat Satellite 6.17 for RHEL 9: Red Hat Satellite 6.17 for RHEL 9: Red Hat Satellite 6.17 for RHEL 9: Red Hat Satellite 6.17 for RHEL 9: Red Hat Satellite 6.17 for RHEL 9: Red Hat Satellite 6.17 for RHEL 9: Red Hat Satellite 6.17 for RHEL 9: Red Hat Satellite 6.17 for RHEL 9: Red Hat Satellite 6.17 for RHEL 9: Red Hat Satellite 6.17 for RHEL 9: Red Hat Satellite 6.17 for RHEL 9: Red Hat Satellite 6.17 for RHEL 9: Red Hat Satellite 6.17 for RHEL 9: Red Hat Satellite 6.17 for RHEL 9: Red Hat Satellite 6.17 for RHEL 9: Red Hat Satellite 6.17 for RHEL 9: Red Hat Satellite 6.18 for RHEL 9: Red Hat Satellite 6:

Exploit Probability

EPSS
0.11%
Percentile
29.42%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.