Bug 2496732 (CVE-2026-15416)

Summary:	CVE-2026-15416 argo-cd: Argo CD unauthenticated remote code execution in repo-server via GenerateManifest gRPC endpoint
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	abarbaro, alizardo, anjoseph, dschmidt, jchui, jhe, jlanda, jprabhak, kshier, ktsao, manissin, nboldt, oaljalju, psrna, simaishi, stcannon, teagle, wtam, yguenane
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was identified in Argo CD, the GitOps engine used by Red Hat OpenShift GitOps, that could allow an unauthenticated attacker with network access to the Argo CD repo-server to achieve remote code execution. Under certain conditions, the attacker may then manipulate cached data to deploy malicious Kubernetes resources to managed clusters, potentially resulting in complete cluster compromise.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-07-03 04:40:19 UTC

An unauthenticated attacker can exploit the Argo CD repo-server's GenerateManifest gRPC endpoint by supplying malicious KustomizeOptions (specifically BuildOptions or BinaryPath), causing arbitrary commands to be executed in the repo-server pod. When combined with Redis cache manipulation, this can result in the deployment of attacker-controlled Kubernetes manifests, potentially leading to complete compromise of the Kubernetes cluster.