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CVE-2026-1961
March 26, 2026
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.
Affected Packages
https://github.com/theforeman/foreman.git (GITHUB):
Affected version(s) =3.18.0 <3.18.1
Fix Suggestion:
Update to version 3.18.1
https://github.com/theforeman/foreman.git (GITHUB):
Affected version(s) =3.18.0 <3.18.1
Fix Suggestion:
Update to version 3.18.1
https://github.com/theforeman/foreman.git (GITHUB):
Affected version(s) >=foreman-1.7.0-1 <3.16.3
Fix Suggestion:
Update to version 3.16.3
https://github.com/theforeman/foreman.git (GITHUB):
Affected version(s) =3.18.0 <3.18.1
Fix Suggestion:
Update to version 3.18.1
https://github.com/theforeman/foreman.git (GITHUB):
Affected version(s) =3.18.0 <3.18.1
Fix Suggestion:
Update to version 3.18.1
https://github.com/theforeman/foreman.git (GITHUB):
Affected version(s) >=3.17.0 <3.17.2
Fix Suggestion:
Update to version 3.17.2
https://github.com/theforeman/foreman.git (GITHUB):
Affected version(s) >=3.17.0 <3.17.2
Fix Suggestion:
Update to version 3.17.2
https://github.com/theforeman/foreman.git (GITHUB):
Affected version(s) >=foreman-1.7.0-1 <3.16.3
Fix Suggestion:
Update to version 3.16.3
https://github.com/theforeman/foreman.git (GITHUB):
Affected version(s) >=foreman-1.7.0-1 <3.16.3
Fix Suggestion:
Update to version 3.16.3
https://github.com/theforeman/foreman.git (GITHUB):
Affected version(s) >=3.17.0 <3.17.2
Fix Suggestion:
Update to version 3.17.2
https://github.com/theforeman/foreman.git (GITHUB):
Affected version(s) =3.18.0 <3.18.1
Fix Suggestion:
Update to version 3.18.1
https://github.com/theforeman/foreman.git (GITHUB):
Affected version(s) >=foreman-1.7.0-1 <3.16.3
Fix Suggestion:
Update to version 3.16.3
https://github.com/theforeman/foreman.git (GITHUB):
Affected version(s) =3.18.0 <3.18.1
Fix Suggestion:
Update to version 3.18.1
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CVSS v4
Base Score:
8.6
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
EPSS
Base Score:
0.12