CVE-2026-67567

CRITICALPre-NVD 9.99.9—
EchelonGraph scoreMEDIUM confidence

Score 9.9 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-20. The CNA's CVSS baseline 9.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:redhat, epss, ghsa
Trending — 4 sources updated this week
9.9EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 9.9Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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.

CVSS v3
9.9
EG Score
9.9CRITICALmedium confidence
EG Risk
45
EG Risk 45/100CISA SSVC

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
Severity99% × 45%
Exploitation1% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.6%
EPSS %ILE
47th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 20, 2026

Last Modified

September 5, 2026

Advisory Details (8)

Auto-updated Oct 3, 2026
Patch 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=2514224
redhat 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-2026-67567
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:60391
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:60390
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:60389
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:60388
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:60387
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:60386

Vendor Advisories for CVE-2026-67567(7)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(6)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatrhacm2/multicluster-operators-subscription-rhel9:17872635842026-08-26redhat
redhatrhacm2/multicluster-operators-subscription-rhel9:17871708302026-08-26redhat
redhatrhacm2/multicluster-operators-subscription-rhel9:17872423212026-08-26redhat
redhatrhacm2/multicluster-operators-subscription-rhel9:17872636932026-08-26redhat
redhatrhacm2/multicluster-operators-subscription-rhel9:17872400302026-08-26redhat
redhatrhacm2/multicluster-operators-subscription-rhel9:17872421082026-08-26redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 71× in last 7d / 360× 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.

Showing the most recent 100 of 553 total refreshes for this CVE.

  1. 2026-10-05 09:29 UTCVendor advisory
  2. 2026-10-05 09:29 UTCGHSA enrichment
  3. 2026-10-05 05:23 UTCVendor advisory
  4. 2026-10-05 05:23 UTCGHSA enrichment
  5. 2026-10-05 01:34 UTCEG score recompute
  6. 2026-10-05 01:34 UTCVendor advisory
  7. 2026-10-05 01:34 UTCGHSA enrichment
  8. 2026-10-04 23:22 UTCEPSS rescore
  9. 2026-10-04 20:51 UTCVendor advisory
  10. 2026-10-04 20:51 UTCGHSA enrichment
  11. 2026-10-04 14:41 UTCVendor advisory
  12. 2026-10-04 14:41 UTCGHSA enrichment
  13. 2026-10-04 10:16 UTCVendor advisory
  14. 2026-10-04 10:16 UTCGHSA enrichment
  15. 2026-10-04 06:26 UTCVendor advisory
  16. 2026-10-04 06:26 UTCGHSA enrichment
  17. 2026-10-04 02:38 UTCVendor advisory
  18. 2026-10-04 02:38 UTCGHSA enrichment
  19. 2026-10-03 20:47 UTCVendor advisory
  20. 2026-10-03 20:47 UTCGHSA enrichment
  21. 2026-10-03 16:46 UTCEG score recompute
  22. 2026-10-03 16:46 UTCVendor advisory
  23. 2026-10-03 16:46 UTCGHSA enrichment
  24. 2026-10-03 14:26 UTCEPSS rescore
  25. 2026-10-03 04:28 UTCVendor advisory
Show 75 more
  1. 2026-10-03 04:28 UTCGHSA enrichment
  2. 2026-10-03 00:39 UTCVendor advisory
  3. 2026-10-03 00:39 UTCGHSA enrichment
  4. 2026-10-02 18:55 UTCEG score recompute
  5. 2026-10-02 18:55 UTCVendor advisory
  6. 2026-10-02 18:55 UTCGHSA enrichment
  7. 2026-10-02 17:56 UTCEPSS rescore
  8. 2026-10-02 14:55 UTCVendor advisory
  9. 2026-10-02 14:55 UTCGHSA enrichment
  10. 2026-10-02 11:05 UTCVendor advisory
  11. 2026-10-02 11:05 UTCGHSA enrichment
  12. 2026-10-02 06:49 UTCVendor advisory
  13. 2026-10-02 06:48 UTCGHSA enrichment
  14. 2026-10-02 01:20 UTCVendor advisory
  15. 2026-10-02 01:20 UTCGHSA enrichment
  16. 2026-10-01 21:28 UTCEG score recompute
  17. 2026-10-01 21:28 UTCVendor advisory
  18. 2026-10-01 21:28 UTCGHSA enrichment
  19. 2026-10-01 19:50 UTCEPSS rescore
  20. 2026-10-01 13:20 UTCVendor advisory
  21. 2026-10-01 13:20 UTCGHSA enrichment
  22. 2026-10-01 09:30 UTCVendor advisory
  23. 2026-10-01 09:30 UTCGHSA enrichment
  24. 2026-10-01 05:41 UTCVendor advisory
  25. 2026-10-01 05:41 UTCGHSA enrichment
  26. 2026-10-01 01:12 UTCVendor advisory
  27. 2026-10-01 01:12 UTCGHSA enrichment
  28. 2026-09-30 20:31 UTCEG score recompute
  29. 2026-09-30 20:31 UTCVendor advisory
  30. 2026-09-30 20:31 UTCGHSA enrichment
  31. 2026-09-30 15:03 UTCEPSS rescore
  32. 2026-09-30 11:59 UTCVendor advisory
  33. 2026-09-30 11:59 UTCGHSA enrichment
  34. 2026-09-30 08:10 UTCEG score recompute
  35. 2026-09-30 08:10 UTCVendor advisory
  36. 2026-09-30 08:10 UTCGHSA enrichment
  37. 2026-09-29 05:43 UTCVendor advisory
  38. 2026-09-29 05:43 UTCGHSA enrichment
  39. 2026-09-29 01:53 UTCVendor advisory
  40. 2026-09-29 01:53 UTCGHSA enrichment
  41. 2026-09-28 21:37 UTCEG score recompute
  42. 2026-09-28 21:37 UTCVendor advisory
  43. 2026-09-28 21:37 UTCGHSA enrichment
  44. 2026-09-28 13:52 UTCEPSS rescore
  45. 2026-09-28 13:46 UTCVendor advisory
  46. 2026-09-28 13:46 UTCGHSA enrichment
  47. 2026-09-28 09:57 UTCVendor advisory
  48. 2026-09-28 09:57 UTCGHSA enrichment
  49. 2026-09-28 06:08 UTCVendor advisory
  50. 2026-09-28 06:08 UTCGHSA enrichment
  51. 2026-09-28 02:19 UTCVendor advisory
  52. 2026-09-28 02:19 UTCGHSA enrichment
  53. 2026-09-27 22:31 UTCVendor advisory
  54. 2026-09-27 22:31 UTCGHSA enrichment
  55. 2026-09-27 18:42 UTCVendor advisory
  56. 2026-09-27 18:41 UTCGHSA enrichment
  57. 2026-09-27 14:52 UTCEG score recompute
  58. 2026-09-27 14:52 UTCVendor advisory
  59. 2026-09-27 14:52 UTCGHSA enrichment
  60. 2026-09-27 13:48 UTCEPSS rescore
  61. 2026-09-27 10:59 UTCVendor advisory
  62. 2026-09-27 10:59 UTCGHSA enrichment
  63. 2026-09-27 06:52 UTCVendor advisory
  64. 2026-09-27 06:52 UTCGHSA enrichment
  65. 2026-09-27 02:55 UTCEG score recompute
  66. 2026-09-27 02:55 UTCVendor advisory
  67. 2026-09-27 02:55 UTCGHSA enrichment
  68. 2026-09-26 15:59 UTCEPSS rescore
  69. 2026-09-25 17:22 UTCVendor advisory
  70. 2026-09-25 17:22 UTCGHSA enrichment
  71. 2026-09-25 12:15 UTCVendor advisory
  72. 2026-09-25 12:15 UTCGHSA enrichment
  73. 2026-09-25 08:26 UTCVendor advisory
  74. 2026-09-25 08:26 UTCGHSA enrichment
  75. 2026-09-25 04:29 UTCVendor advisory

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Frequently asked(5)

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 on August 20, 2026, with the most recent update on September 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-67567 actively exploited?
CVE-2026-67567 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (47th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-67567?
CVE-2026-67567 has a CVSS base score of 9.9 (the CNA's own assessment, by redhat; NVD's own analysis pending).
How do I remediate CVE-2026-67567?
A fix for CVE-2026-67567 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-67567 are linked in the Vendor Advisories panel on this page.

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