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CVE-2026-15416 is an unauthenticated remote code execution vulnerability in Argo CD's repo-server, specifically associated with the GenerateManifest gRPC endpoint. The flaw allows an attacker with network reachability to the repo-server gRPC interface to invoke a critical function without proper authentication. In deployments where the attacker can also reach and influence the Argo CD Redis cache, the issue can be extended beyond code execution on the repo-server to manipulation of cached manifest data, enabling the deployment of attacker-controlled Kubernetes resources into clusters managed by Argo CD. The weakness is classified as CWE-306, reflecting missing authentication on a security-sensitive operation.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An unauthenticated remote code execution vulnerability in Argo CD's repo-server via the generatemanifest gRPC endpoint that can also enable malicious Kubernetes resource deployment and possible full cluster compromise.
An unauthenticated remote code execution vulnerability in the Argo CD repo-server that can, under certain conditions, be chained with Redis cache manipulation to compromise Kubernetes clusters managed by Argo CD.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.