CVE-2026-1961
Forman: foreman: remote code execution via command injection in websocket proxy
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.
INFO
Published Date :
March 26, 2026, 1:16 p.m.
Last Modified :
April 8, 2026, 12:16 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-1961
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 53f830b8-0a3f-465b-8143-3b8a9948e749 | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update Foreman to the latest version.
- Validate hostname inputs rigorously.
- Sanitize all user-supplied data.
- Review WebSocket proxy security settings.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-1961.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-1961 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-1961
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-1961 vulnerability anywhere in the article.
-
Daily CyberSecurity
CISA Issues Emergency Mandate as Critical 9.3 NetScaler Flaw “Bleeds” Admin Sessions
Image: watchTowr The Cybersecurity and Infrastructure Security Agency (CISA) has officially added a critical vulnerability impacting Citrix NetScaler ADC and Gateway to its Known Exploited Vulnerabili ... Read more
-
Daily CyberSecurity
High-Severity RCE Discovered in Foreman’s WebSocket Proxy
Security researchers have identified a high-severity vulnerability in Foreman, the popular open-source lifecycle management tool used by system administrators to provision and orchestrate thousands of ... Read more
The following table lists the changes that have been made to the
CVE-2026-1961 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
Apr. 08, 2026
Action Type Old Value New Value Added CWE CWE-78 -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Mar. 27, 2026
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2026/03/27/3 -
CVE Modified by [email protected]
Mar. 27, 2026
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2026:5968 -
CVE Modified by [email protected]
Mar. 26, 2026
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2026:5970 Added Reference https://access.redhat.com/errata/RHSA-2026:5971 -
New CVE Received by [email protected]
Mar. 26, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H Added Reference https://access.redhat.com/security/cve/CVE-2026-1961 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2437036