{"id":"CVE-2026-121621","aliases":["EUVD-2026-116381","GHSA-3cw2-hq94-57x5"],"status":"published","title":"Github.com/argoproj-labs/argocd-image-updater: argocd-image-updater: arbitrary command execution via crafted ssh repository proxy configuration","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.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.01821,"percentile":0.79063,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-78"],"published":"2026-11-03T21:00:53Z","modified":"2026-11-06T05:31:44Z","products":[{"vendor":"red hat","product":"red hat openshift gitops"}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-121621","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2565914","tags":["issue-tracking","x_refsource_REDHAT"]},{"url":"https://github.com/argoproj-labs/argocd-image-updater/pull/1905"},{"url":"https://redhat.atlassian.net/browse/GITOPS-11907"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121621"},{"url":"https://github.com/advisories/GHSA-3cw2-hq94-57x5"}],"sources":{"cve":[{"id":"CVE-2026-121621","title":"Github.com/argoproj-labs/argocd-image-updater: argocd-image-updater: arbitrary command execution via crafted ssh repository proxy configuration","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.","status":"published","published":"2026-11-03T21:00:53.423Z","modified":"2026-11-06T05:31:44.592Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-78"],"updated_at":"2026-11-06T06:57:06.337152Z"}],"euvd":[{"id":"EUVD-2026-116381","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.","status":"published","published":"2026-11-03T21:00:53Z","modified":"2026-11-06T05:31:44Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-06T06:03:53.769755Z"}],"ghsa":[{"id":"GHSA-3cw2-hq94-57x5","title":"A command injection vulnerability was found in Argo CD Image Updater, where a proxy URL...","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.","status":"published","published":"2026-11-03T21:32:29Z","modified":"2026-11-06T06:31:25Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-78"],"updated_at":"2026-11-06T06:59:04.098776Z"}],"nvd":[{"id":"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.","status":"published","published":"2026-11-03T21:17:37.857Z","modified":"2026-11-06T06:16:41.903Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-78"],"updated_at":"2026-11-06T11:59:59.706046Z"}]}}