CVE-2026-15416

HIGHPre-NVD 8.98.9—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.9 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 80% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
8.9EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.9Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
8.9
EG Score
8.9(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity89% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
20%
KEV
Not listed

Published

July 14, 2026

Last Modified

July 15, 2026

Advisory Details (6)

Auto-updated Jul 14, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github, redhat.
generic🟡 PoC Available

Caught in the Octopus Trap: Unauthenticated RCE in Argo CD with CodeQL

https://www.synacktiv.com/en/publications/caught-in-the-octopus-trap-unauthenticated-rce-in-argo-cd-with-codeql
generic

Unpatched Argo CD Repo-Server Flaw Could Let Attackers Take Over Kubernetes Clusters

https://thehackernews.com/2026/07/unpatched-argo-cd-repo-server-flaw.html
github Patch Available

Argo CD: Network policies securing repo-server are not installed by default leading to RCE · Advisory · argoproj/argo-helm · GitHub

https://github.com/argoproj/argo-helm/security/advisories/GHSA-47m3-95c7-g2g8
github_commit Patch Available

commit 0f245ab (argoproj/argo-helm)

Patch available: argoproj/argo-helm argo-cd-10.0.0 (contains commit 0f245ab)

https://github.com/argoproj/argo-helm/commit/0f245ab
redhat

2496732 – (CVE-2026-15416) CVE-2026-15416 argo-cd: Argo CD unauthenticated remote code execution in repo-server via GenerateManifest gRPC endpoint

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

cve-details

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

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 21× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-27 15:21 UTCEG score recompute
  2. 2026-07-27 14:13 UTCEPSS rescore
  3. 2026-07-27 00:41 UTCEG score recompute
  4. 2026-07-26 14:54 UTCEPSS rescore
  5. 2026-07-26 14:54 UTCEPSS rescore
  6. 2026-07-26 11:49 UTCEG score recompute
  7. 2026-07-25 14:17 UTCEPSS rescore
  8. 2026-07-24 14:17 UTCEPSS rescore
  9. 2026-07-23 14:18 UTCEPSS rescore
  10. 2026-07-23 03:05 UTCEG score recompute
  11. 2026-07-22 14:08 UTCEPSS rescore
  12. 2026-07-21 15:24 UTCEPSS rescore
  13. 2026-07-20 17:08 UTCEPSS rescore
  14. 2026-07-19 14:30 UTCEPSS rescore
  15. 2026-07-19 02:28 UTCEPSS rescore
  16. 2026-07-18 10:04 UTCEPSS rescore
  17. 2026-07-16 17:02 UTCEPSS rescore
  18. 2026-07-15 16:57 UTCEPSS rescore
  19. 2026-07-15 02:00 UTCEPSS rescore
  20. 2026-07-14 09:10 UTCEG score recompute
  21. 2026-07-14 09:10 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-15416?
CVE-2026-15416 is a high vulnerability published on July 14, 2026. 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…
When was CVE-2026-15416 disclosed?
CVE-2026-15416 was first published in the National Vulnerability Database on July 14, 2026, with the most recent update on July 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15416 actively exploited?
CVE-2026-15416 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 79.7% of all scored CVEs.
What is the CVSS score of CVE-2026-15416?
CVE-2026-15416 has a CVSS v3 base score of 8.9 (NVD).
How do I remediate CVE-2026-15416?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15416, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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