CVE-2026-15416

Argo-cd: argo cd unauthenticated remote code execution in repo-server via generatemanifest grpc endpoint

Published: Jul 14, 2026Updated: Aug 11, 2026 Sources: CVE List NVDCWE-306

8.9HIGH

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:AAttack Vector

Adjacent

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:CScope

Changed

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:LAvailability

Low

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Weaknesses

CWE-306

Affected Products

Red Hat

commercial·US

Red Hat OpenShift GitOps 1.19On-prem

Operating Systems / linux-distro

Red Hat Openshift Data Foundation 4SaaS

Cloud & SaaS / container-orchestration

Red Hat OpenShift GitOpsOn-prem

Cloud & SaaS / container-orchestration

argoproj

oss-projectaka argo cd, argo-cd, argo workflow, argo workflows

argo-helmOn-prem

Cloud & SaaS / container-orchestration

Exploitability

Workaround Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Initial Access

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References

https://access.redhat.com/errata/RHSA-2026:52857

access.redhat.com

https://access.redhat.com/security/cve/CVE-2026-15416

access.redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=2496732

bugzilla.redhat.com

and 4 more references View all →

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