CVE-2026-121621: high-severity vulnerability in Red Hat OpenShift GitOps
Github.com/argoproj-labs/argocd-image-updater: argocd-image-updater: arbitrary command execution via crafted ssh repository proxy configuration
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.8epss 1.8%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Red Hat · Red Hat OpenShift GitOpsRelated CVEs — Red Hat OpenShift GitOps
In the same product, most dangerous first.
CVE-2024-1394HIGHGolang-fips/openssl: memory leaks in code encrypting and decrypting rsa payloadsEPSS 1.5%CVE-2023-6717MEDIUMKeycloak: xss via assertion consumer service url in saml post-binding flowEPSS 0.7%CVE-2025-13888CRITICALOpenshift-gitops-operator: openshift gitops: namespace admin cluster takeover via privileged jobsEPSS 0.7%CVE-2024-12401MEDIUMCert-manager: potential dos when parsing specially crafted pem inputsEPSS 0.7%CVE-2025-8556LOWGithub.com/cloudflare/circl: circl-fourq: missing and wrong validation can lead to incorrect resultsEPSS 0.5%CVE-2026-15416HIGHArgo-cd: argo cd unauthenticated remote code execution in repo-server via generatemanifest grpc endpointEPSS 0.5%