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.
Advisories

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Fixes

Solution

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Workaround

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History

Wed, 04 Nov 2026 00:30:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Tue, 03 Nov 2026 21:15:00 +0000

Type Values Removed Values Added
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.
Title Github.com/argoproj-labs/argocd-image-updater: argocd-image-updater: arbitrary command execution via crafted ssh repository proxy configuration
First Time appeared Redhat
Redhat openshift Gitops
Weaknesses CWE-78
CPEs cpe:/a:redhat:openshift_gitops:1
Vendors & Products Redhat
Redhat openshift Gitops
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

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

Reserved: 2026-11-03T16:47:48.146Z

Link: CVE-2026-121621

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-11-03T21:17:37.857

Modified: 2026-11-03T21:17:37.980

Link: CVE-2026-121621

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-11-02T18:00:00Z

Links: CVE-2026-121621 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-11-04T03:45:07Z

Weaknesses