CVE-2026-10059

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-05. a secondary CVSS source baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.1Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in the Multicluster Engine for Kubernetes ClusterCurator controller. A tenant administrator with namespace-scoped privileges can exploit this vulnerability by creating a namespaced ClusterCurator. This action inadvertently grants the tenant administrator the ability to mint a token for a ServiceAccount with cluster-wide administrative authority. This leads to a privilege escalation, allowing the tenant administrator to gain full control over the cluster.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
41(Track)
EG Risk 41/100SSVC: 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
Severity91% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
28%
KEV
Not listed

Published

August 5, 2026

Last Modified

September 8, 2026

Advisory Details (7)

Auto-updated Sep 15, 2026
Patch available. Sources: redhat.
redhat

2483187 – (CVE-2026-10059) CVE-2026-10059 cluster-curator-controller: cluster-curator-controller: namespace admin can escalate to cluster-wide curator authority via ClusterCurator ServiceAccount token

https://bugzilla.redhat.com/show_bug.cgi?id=2483187
redhat Patch Available

CVE-2026-10059 - 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-2026-10059
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:59579
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:59559
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:59558
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:59557
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:59556

Vendor Advisories for CVE-2026-10059(6)

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

Patch Availability(5)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatmulticluster-engine/cluster-curator-controller-rhel9:17872016122026-08-25redhat
redhatmulticluster-engine/cluster-curator-controller-rhel9:17872641852026-08-25redhat
redhatmulticluster-engine/cluster-curator-controller-rhel9:17872590112026-08-25redhat
redhatmulticluster-engine/cluster-curator-controller-rhel9:17872016462026-08-25redhat
redhatmulticluster-engine/cluster-curator-controller-rhel9:17872383832026-08-25redhat

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 77× in last 7d / 308× 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 438 total refreshes for this CVE.

  1. 2026-09-19 07:49 UTCVendor advisory
  2. 2026-09-19 07:49 UTCGHSA enrichment
  3. 2026-09-19 03:28 UTCVendor advisory
  4. 2026-09-19 03:28 UTCGHSA enrichment
  5. 2026-09-18 22:21 UTCEG score recompute
  6. 2026-09-18 22:21 UTCVendor advisory
  7. 2026-09-18 22:21 UTCGHSA enrichment
  8. 2026-09-18 19:27 UTCEPSS rescore
  9. 2026-09-18 17:45 UTCVendor advisory
  10. 2026-09-18 17:45 UTCGHSA enrichment
  11. 2026-09-18 13:16 UTCVendor advisory
  12. 2026-09-18 13:16 UTCGHSA enrichment
  13. 2026-09-18 08:37 UTCVendor advisory
  14. 2026-09-18 08:37 UTCGHSA enrichment
  15. 2026-09-18 04:52 UTCVendor advisory
  16. 2026-09-18 04:52 UTCGHSA enrichment
  17. 2026-09-18 01:07 UTCEG score recompute
  18. 2026-09-18 01:07 UTCVendor advisory
  19. 2026-09-18 01:07 UTCGHSA enrichment
  20. 2026-09-17 15:58 UTCVendor advisory
  21. 2026-09-17 15:58 UTCGHSA enrichment
  22. 2026-09-17 08:43 UTCVendor advisory
  23. 2026-09-17 08:43 UTCGHSA enrichment
  24. 2026-09-17 04:53 UTCVendor advisory
  25. 2026-09-17 04:53 UTCGHSA enrichment
Show 75 more
  1. 2026-09-17 01:08 UTCEG score recompute
  2. 2026-09-17 01:08 UTCVendor advisory
  3. 2026-09-17 01:08 UTCGHSA enrichment
  4. 2026-09-16 11:13 UTCVendor advisory
  5. 2026-09-16 11:13 UTCGHSA enrichment
  6. 2026-09-16 07:01 UTCEG score recompute
  7. 2026-09-16 07:01 UTCVendor advisory
  8. 2026-09-16 07:01 UTCGHSA enrichment
  9. 2026-09-16 05:14 UTCEPSS rescore
  10. 2026-09-16 03:16 UTCVendor advisory
  11. 2026-09-16 03:16 UTCGHSA enrichment
  12. 2026-09-15 16:27 UTCVendor advisory
  13. 2026-09-15 16:27 UTCGHSA enrichment
  14. 2026-09-15 06:52 UTCEG score recompute
  15. 2026-09-15 06:52 UTCVendor advisory
  16. 2026-09-15 06:52 UTCGHSA enrichment
  17. 2026-09-15 01:31 UTCVendor advisory
  18. 2026-09-15 01:31 UTCGHSA enrichment
  19. 2026-09-14 16:59 UTCVendor advisory
  20. 2026-09-14 16:59 UTCGHSA enrichment
  21. 2026-09-14 13:14 UTCVendor advisory
  22. 2026-09-14 13:14 UTCGHSA enrichment
  23. 2026-09-14 09:17 UTCVendor advisory
  24. 2026-09-14 09:17 UTCGHSA enrichment
  25. 2026-09-14 05:32 UTCVendor advisory
  26. 2026-09-14 05:32 UTCGHSA enrichment
  27. 2026-09-14 01:47 UTCVendor advisory
  28. 2026-09-14 01:47 UTCGHSA enrichment
  29. 2026-09-13 22:02 UTCVendor advisory
  30. 2026-09-13 22:02 UTCGHSA enrichment
  31. 2026-09-13 18:17 UTCEG score recompute
  32. 2026-09-13 18:17 UTCVendor advisory
  33. 2026-09-13 18:17 UTCGHSA enrichment
  34. 2026-09-13 16:46 UTCEPSS rescore
  35. 2026-09-13 14:32 UTCVendor advisory
  36. 2026-09-13 14:32 UTCGHSA enrichment
  37. 2026-09-13 10:47 UTCVendor advisory
  38. 2026-09-13 10:47 UTCGHSA enrichment
  39. 2026-09-13 07:02 UTCVendor advisory
  40. 2026-09-13 07:02 UTCGHSA enrichment
  41. 2026-09-13 03:17 UTCVendor advisory
  42. 2026-09-13 03:17 UTCGHSA enrichment
  43. 2026-09-12 23:32 UTCVendor advisory
  44. 2026-09-12 23:32 UTCGHSA enrichment
  45. 2026-09-12 19:46 UTCVendor advisory
  46. 2026-09-12 19:46 UTCGHSA enrichment
  47. 2026-09-12 16:01 UTCEG score recompute
  48. 2026-09-12 16:01 UTCVendor advisory
  49. 2026-09-12 16:01 UTCGHSA enrichment
  50. 2026-09-12 15:00 UTCEPSS rescore
  51. 2026-09-12 12:16 UTCVendor advisory
  52. 2026-09-12 12:16 UTCGHSA enrichment
  53. 2026-09-12 07:59 UTCVendor advisory
  54. 2026-09-12 07:59 UTCGHSA enrichment
  55. 2026-09-12 04:14 UTCVendor advisory
  56. 2026-09-12 04:14 UTCGHSA enrichment
  57. 2026-09-12 00:23 UTCVendor advisory
  58. 2026-09-12 00:23 UTCGHSA enrichment
  59. 2026-09-11 18:27 UTCEG score recompute
  60. 2026-09-11 18:27 UTCVendor advisory
  61. 2026-09-11 18:27 UTCGHSA enrichment
  62. 2026-09-11 14:52 UTCEPSS rescore
  63. 2026-09-11 14:42 UTCEG score recompute
  64. 2026-09-11 14:42 UTCVendor advisory
  65. 2026-09-11 14:42 UTCGHSA enrichment
  66. 2026-09-11 09:36 UTCEPSS rescore
  67. 2026-09-11 08:56 UTCVendor advisory
  68. 2026-09-11 08:56 UTCGHSA enrichment
  69. 2026-09-11 05:11 UTCVendor advisory
  70. 2026-09-11 05:11 UTCGHSA enrichment
  71. 2026-09-11 01:26 UTCVendor advisory
  72. 2026-09-11 01:26 UTCGHSA enrichment
  73. 2026-09-10 21:41 UTCVendor advisory
  74. 2026-09-10 21:41 UTCGHSA enrichment
  75. 2026-09-10 17:56 UTCVendor advisory

Frequently asked(5)

What is CVE-2026-10059?
CVE-2026-10059 is a critical vulnerability published on August 5, 2026. A flaw was found in the Multicluster Engine for Kubernetes ClusterCurator controller. A tenant administrator with namespace-scoped privileges can exploit this vulnerability by creating a namespaced ClusterCurator. This action inadvertently grants the tenant administrator the ability to mint a token…
When was CVE-2026-10059 disclosed?
CVE-2026-10059 was first published in the National Vulnerability Database on August 5, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-10059 actively exploited?
CVE-2026-10059 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 72.2% of all scored CVEs.
What is the CVSS score of CVE-2026-10059?
CVE-2026-10059 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-10059?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-10059, 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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