CVE-2026-1961

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

HIGH
8.8
CVSS Score
Published: March 26, 2026 at 12:53 PM UTC
Updated: October 20, 2026 at 07:04 PM UTC
2 products affected across 2 vendorsSatelliteForeman· also runs on 1 platform

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Severity
HIGH8.8
Exploit prediction
EPSS 2%
SSVC
PoC

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.16 ≤ v < 6.16.76.17 ≤ v < 6.17.76.18 ≤ v < 6.18.466.0
Vendor states this is fixed in 0:0.0.3-4.el9sat (unaffected)
Vendor states this is fixed in 0:0.1.23-0.3.el9pc (unaffected)
Vendor states this is fixed in 0:0.13.0-1.el9sat (unaffected)
Vendor states this is fixed in 0:0.4.3-1.el9sat (unaffected)
Vendor states this is fixed in 0:1.2.0-0.1.el9pc (unaffected)
Vendor states this is fixed in 0:1.5.1-1.el9sat (unaffected)
Vendor states this is fixed in 0:2.22.3-1.el9pc (unaffected)
Vendor states this is fixed in 0:3.12.0.14-1.el8sat (unaffected)
Vendor states this is fixed in 0:3.12.0.14-1.el9sat (unaffected)
Vendor states this is fixed in 0:3.14.0.14-1.el9sat (unaffected)
Vendor states this is fixed in 0:3.16.0.12-1.el9sat (unaffected)
Vendor states this is fixed in 0:3.27.10-2.el9pc (unaffected)
Vendor states this is fixed in 0:4.16.0.14-1.el9sat (unaffected)
Vendor states this is fixed in 0:4.2.28-0.1.el9pc (unaffected)
Vendor states this is fixed in 0:6.17.7-1.el9sat (unaffected)
v < 3.16.33.17.0 ≤ v < 3.17.23.18.0 ≤ v < 3.18.1

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

References (7)

VDB Entryx_refsource_REDHATVendor Advisory
Source: cverecord
https://access.redhat.com/security/cve/CVE-2026-1961
Issue Trackingx_refsource_REDHATExploitVendor Advisory
Source: cverecord
https://bugzilla.redhat.com/show_bug.cgi?id=2437036
Vendor Advisoryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/errata/RHSA-2026:5970
Vendor Advisoryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/errata/RHSA-2026:5971
Vendor Advisoryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/errata/RHSA-2026:5968
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2026/03/27/3
Vendor Advisory
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1961.json

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-78

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