Red Hat OpenShift GitOps Argo CD Image Updater command injection

Summaryinfo

A vulnerability was found in Red Hat OpenShift GitOps. It has been classified as critical. Affected is an unknown function of the component Argo CD Image Updater. The manipulation leads to command injection. This vulnerability is referenced as CVE-2026-121621. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Red Hat OpenShift GitOps (unknown version). This issue affects an unknown code block of the component Argo CD Image Updater. The manipulation with an unknown input leads to a command injection vulnerability. Using CWE to declare the problem leads to CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at access.redhat.com. The identification of this vulnerability is CVE-2026-121621 since 11/03/2026. The exploitation is known to be easy. The attack may be initiated remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 11/03/2026). The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Virtualization Software

Vendor

• Red Hat

Name

• OpenShift GitOps

License

• open-source

Website

• Vendor: https://www.redhat.com/

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