CVE-2026-10059

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreHIGH 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 — 3 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

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

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(high)
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
20%
KEV
Not listed

Published

August 5, 2026

Last Modified

August 6, 2026

Advisory Details (2)

Auto-updated Aug 5, 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

Vendor Advisories for CVE-2026-10059(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 56× in last 7d / 138× 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 138 total refreshes for this CVE.

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

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 August 6, 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 80.3% 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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