A flaw was found in the multicloud-operators-subscription component. This vulnerability allows a tenant, who has the ability to create HelmRelease custom resources (CRs), to bypass existing security controls. The system's HelmRelease controller processes Helm chart templates using its own elevated ServiceAccount privileges without proper validation. This enables the tenant to deploy arbitrary resources across the entire cluster, leading to a significant security compromise.
CVE-2026-67567
CRITICALPre-NVD 9.99.9—Trending — 3 sources updated this week
EchelonGraph scoreHIGH confidence
Score 9.9 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-20. a secondary CVSS source baseline 9.9; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: ghsa, secondary
9.9EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: —CVSS: 9.9Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.9
- EG Score
- 9.9(high)
- EG Risk
- 49(Track)EG Risk 49/100SSVC: 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 computedSeverity99% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- —
- EPSS %ILE
- —
- KEV
- Not listed
Published
August 20, 2026
Last Modified
August 20, 2026
Advisory Details (2)
Auto-updated Aug 20, 2026Patch available. Sources: redhat.
redhat
2514224 – (CVE-2026-67567) CVE-2026-67567 multicloud-operators-subscription: multicloud-operators-subscription: HelmRelease chart applied with controller SA without GVK or namespace restriction
https://bugzilla.redhat.com/show_bug.cgi?id=2514224redhat Patch Available
CVE-2026-67567 - Red Hat Customer Portal
Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a
https://access.redhat.com/security/cve/CVE-2026-67567Vendor Advisories for CVE-2026-67567(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 6× in last 7d / 6× 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.
- 2026-08-21 04:59 UTCGHSA enrichment
- 2026-08-21 01:10 UTCEG score recompute
- 2026-08-21 01:10 UTCGHSA enrichment
- 2026-08-20 21:22 UTCEG score recompute
- 2026-08-20 20:42 UTCEG score recompute
- 2026-08-20 20:41 UTCMITRE cvelistV5first tracked
Frequently asked(4)
What is CVE-2026-67567?
CVE-2026-67567 is a critical vulnerability published on August 20, 2026. A flaw was found in the multicloud-operators-subscription component. This vulnerability allows a tenant, who has the ability to create HelmRelease custom resources (CRs), to bypass existing security controls. The system's HelmRelease controller processes Helm chart templates using its own elevated…
When was CVE-2026-67567 disclosed?
CVE-2026-67567 was first published in the National Vulnerability Database on August 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-67567?
CVE-2026-67567 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2026-67567?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-67567, 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
Explore the affected products and dependency analysis for CVE-2026-67567
Is Your Infrastructure Affected by CVE-2026-67567?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.