Skip to content
EXYS
Back to the CVEs

CVE-2026-121621

8.8, high

Red Hat OpenShift GitOps OS Command Injection Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
8.8, high high CVSS v3.1
EPSS, next 30 days
n/a
Exploitation
No public evidence
Published
3 Nov 2026yesterday

Description

A command injection vulnerability was found in Argo CD Image Updater, where a proxy URL configured on an SSH Git repository is passed unsanitized into a shell-interpreted SSH command. An attacker able to set a malicious proxy value can inject shell metacharacters to execute arbitrary commands and access credentials in the context of the Image Updater process.

Details

Vendor
Red Hat
Product
Red Hat OpenShift GitOps
Weakness
CWE-78 (opens in a new tab)
Status
Awaiting analysis
Updated
3 Nov 2026
Assigner
secalert@redhat.com

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References 3

Patches and fixes 1

Advisories 1

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Red Hat CVEs

Every Red Hat CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2021-3560 Red Hat Polkit Incorrect Authorization Vulnerability KEV EPSS 24% 7.8, high
  • CVE-2021-4034 Red Hat Polkit Out-of-Bounds Read and Write Vulnerability KEV EPSS 95% 7.8, high
  • CVE-2018-14667 Red Hat JBoss RichFaces Framework Expression Language Injection Vulnerability KEV EPSS 74% 9.8, critical
  • CVE-2017-12149 Red Hat JBoss Application Server Remote Code Execution Vulnerability KEV EPSS 91% 9.8, critical
  • CVE-2015-5287 Red Hat Automatic Bug Reporting Tool Privilege Escalation Vulnerability KEV EPSS 5% 7.8, high
  • CVE-2015-3246 Red Hat Libuser Race Condition Vulnerability KEV EPSS 9% 7.4, high
  • CVE-2010-1871 Red Hat Linux JBoss Seam 2 Remote Code Execution Vulnerability KEV EPSS 83% 8.8, high
  • CVE-2010-0738 Red Hat JBoss Authentication Bypass Vulnerability KEV EPSS 74% 5.3, medium

Beyond this page

Is CVE-2026-121621 in your network?

This page tells you how dangerous CVE-2026-121621 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

  • EXYS7600 OCELOT

    Find it before attackers do

    Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2026-121621 comes with the devices to patch.

    Learn more about EXYS7600 OCELOT

  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

    Learn more about EXYS7950 KONDRA
Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 4 Nov 2026, not the live upstream state.