CVE-2026-121621 — Vulnerability intelligence

Red Hat — Red Hat OpenShift GitOps

Published: 2026-11-03T21:00:53.423Z

CVSS

8.8

CISA KEV

Not listed; not proof of no exploitation

Original source text (not a translation)

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.

Sources

• CVE-2026-121621
• Original advisory
• Original advisory
• Original advisory
• CVE-2026-121621