CVE-2026-1961
HighCVSS 8.0Exploitation Probability (EPSS)
Elevated risk70th percentile - higher than 70% of all known CVEs
Summary
A command injection vulnerability was found in Foreman's WebSocket proxy implementation. A remote attacker can exploit unsanitized hostname values from compute resource providers to execute arbitrary code on the Foreman server.
Risk Assessment
Successful exploitation could lead to full compromise of the Foreman server, theft of sensitive credentials, and breach of the entire managed infrastructure.
Recommendation
Immediately update Foreman to a patched version and implement input validation for compute resource provider data.
Other vulnerabilities in Foreman
See all- CVE-2015-5246High
The LDAP Authentication functionality in Foreman might allow remote attackers with knowledge of old passwords to gain access via vectors involving the password lifetime period in Active Directory.
- CVE-2016-4996High
In Foreman before 6.2, when the SSH service is enabled on discovered nodes, discovery-debug displays the root password in plaintext in the system journal during login.
- CVE-2015-5152High
Foreman versions from 1.1 to before 1.9.0-RC1 do not redirect HTTP requests to HTTPS when the require_ssl setting is enabled. This allows remote attackers to obtain user credentials via a man-in-the-middle attack.
- CVE-2017-7505High
Foreman since version 1.5 is vulnerable to an incorrect authorization check, allowing users with user management permissions assigned to certain organizations to perform all operations granted by these permissions on administrator user objects outside their scope.
- CVE-2016-4475High
The Organization and Locations APIs and UIs in Foreman before 1.11.4 and 1.12.x before 1.12.0-RC3 allow remote authenticated users to bypass organization and location restrictions, enabling (a) reading, (b) editing, or (c) deleting arbitrary organizations or locations.
- CVE-2013-0210High
The smart proxy Puppet run API in Foreman before 1.2.0 allows remote attackers to execute arbitrary commands via vectors related to escaping and Puppet commands.
- CVE-2013-0171High
Foreman before 1.1 allows remote attackers to execute arbitrary code via a crafted YAML object to the (1) fact or (2) report import API.
- CVE-2012-5648High
Multiple SQL injection vulnerabilities in Foreman before 1.0.2 allow remote attackers to execute arbitrary SQL commands via unspecified parameters in search.rb or puppetclass.rb, related to the search mechanism.
- CVE-2026-81658Medium
Foreman template revision endpoint lacks object-level authorization. A low-privileged user can retrieve historical template contents from another organization or location.
- CVE-2026-5142Medium
A flaw was found in Foreman that allows authenticated users with 'view_keypairs' permission to download private SSH keys from other organizations by directly querying key pair IDs. This vulnerability bypasses taxonomy scoping, leading to cross-tenant data exposure in multi-tenant deployments.
Original NVD description (English source)
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.