{"id":"CVE-2026-55797","published":"2026-10-09T17:16:47.710","lastModified":"2026-10-09T18:17:08.530","description":"Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. From 2.11.0 until 3.3.15, 3.4.10, 3.5.4, and 3.6.0-rc2, the Argo CD repo-server is vulnerable to command injection when it clones, tests, or fetches an SSH Git repository configured with a proxy URL. The proxy host and port are embedded in an SSH ProxyCommand that is executed through a shell without neutralizing shell metacharacters. A user who can create or update a repository or repository credential template can supply a crafted proxy host to execute commands in the repo-server and access its Git, Helm, and OCI credentials. This issue is fixed in versions 3.3.15, 3.4.10, 3.5.4, and 3.6.0-rc2.","cvssScore":8.8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-78"],"vendors":[],"products":[],"references":[{"url":"https://github.com/argoproj/argo-cd/commit/1e3ddd0b7250aa23f489956b5fab8c13d0493a9f","tags":[]},{"url":"https://github.com/argoproj/argo-cd/commit/9b27aeb1a4fb15d11a0f01cad65dea1fdfc60205","tags":[]},{"url":"https://github.com/argoproj/argo-cd/pull/15864","tags":[]},{"url":"https://github.com/argoproj/argo-cd/releases/tag/v3.3.15","tags":[]},{"url":"https://github.com/argoproj/argo-cd/releases/tag/v3.4.10","tags":[]},{"url":"https://github.com/argoproj/argo-cd/releases/tag/v3.5.4","tags":[]},{"url":"https://github.com/argoproj/argo-cd/releases/tag/v3.6.0-rc2","tags":[]},{"url":"https://github.com/argoproj/argo-cd/security/advisories/GHSA-j6cw-g6p4-7hch","tags":[]}],"exploitRefs":[{"url":"https://github.com/argoproj/argo-cd/commit/1e3ddd0b7250aa23f489956b5fab8c13d0493a9f","tags":[]},{"url":"https://github.com/argoproj/argo-cd/commit/9b27aeb1a4fb15d11a0f01cad65dea1fdfc60205","tags":[]},{"url":"https://github.com/argoproj/argo-cd/pull/15864","tags":[]},{"url":"https://github.com/argoproj/argo-cd/releases/tag/v3.3.15","tags":[]},{"url":"https://github.com/argoproj/argo-cd/releases/tag/v3.4.10","tags":[]},{"url":"https://github.com/argoproj/argo-cd/releases/tag/v3.5.4","tags":[]},{"url":"https://github.com/argoproj/argo-cd/releases/tag/v3.6.0-rc2","tags":[]},{"url":"https://github.com/argoproj/argo-cd/security/advisories/GHSA-j6cw-g6p4-7hch","tags":[]}],"hasPoc":true,"ai":{"summary":"Argo CD repo-server is vulnerable to command injection in SSH ProxyCommand execution, allowing attackers with repository creation privileges to execute arbitrary commands on the server. This affects versions 2.11.0 through 3.6.0-rc2.","exploitability":"Moderately difficult to exploit as it requires a user with repository creation/update privileges to configure a malicious proxy URL, but the attack is largely automated once the configuration is in place.","blast_radius":"High impact in environments where Argo CD manages critical Kubernetes deployments, as attackers could access Git, Helm, and OCI credentials while executing arbitrary commands on the repo-server.","remediation":"Upgrade to Argo CD version 3.3.15, 3.4.10, 3.5.4, or 3.6.0-rc2 immediately to remediate this command injection vulnerability.","detection":"Monitor for unusual SSH ProxyCommand execution patterns in repo-server logs, particularly when proxy URLs contain shell metacharacters or when repository configurations are updated with crafted proxy settings.","tags":["rce","kubernetes","gitops","command-injection","argo-cd"],"model":"garnet-coder","analyzedAt":"2026-10-13T08:52:18.213Z"}}