High severity8.8NVD Advisory· Published Nov 3, 2026· Updated Nov 3, 2026
CVE-2026-121621
CVE-2026-121621
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.
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Affected products
1Patches
Vulnerability mechanics
References
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