{"id":"CVE-2026-40886","sourceIdentifier":"security-advisories@github.com","published":"2026-04-23T19:17:28.617","lastModified":"2026-07-15T02:21:08.717","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. From 3.6.5 to 4.0.4, an unchecked array index in the pod informer's podGCFromPod() function causes a controller-wide panic when a workflow pod carries a malformed workflows.argoproj.io/pod-gc-strategy annotation. Because the panic occurs inside an informer goroutine (outside the controller's recover() scope), it crashes the entire controller process. The poisoned pod persists across restarts, causing a crash loop that halts all workflow processing until the pod is manually deleted. This vulnerability is fixed in 4.0.5 and 3.7.14."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"argoproj","product":"argo-workflows","versions":[{"version":">= 4.0.0, < 4.0.5","status":"affected"},{"version":">= 3.7.0, < 3.7.14","status":"affected"},{"version":">= 3.6.5, <= 3.6.19","status":"affected"}]}]},{"source":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","affectedData":[{"vendor":"Red Hat","product":"Red Hat OpenShift AI (RHOAI)","defaultStatus":"unaffected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"rhoai/odh-data-science-pipelines-argo-argoexec-rhel8","cpes":["cpe:/a:redhat:openshift_ai"]},{"vendor":"Red Hat","product":"Red Hat OpenShift AI (RHOAI)","defaultStatus":"unaffected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"rhoai/odh-data-science-pipelines-argo-argoexec-rhel9","cpes":["cpe:/a:redhat:openshift_ai"]},{"vendor":"Red Hat","product":"Red 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