CVE-2026-73268

CRITICALPre-NVD 9.99.9—
EchelonGraph scoreMEDIUM confidence

Score 9.9 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-12. a secondary CVSS source baseline 9.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
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%CVSS: 9.9Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in the cluster-curator-controller component of multicluster engine (MCE). A tenant with create or update permissions on ClusterCurator resources can inject an arbitrary Job specification. This is possible because the CreateJob() function does not validate user-controlled input when unmarshaling the spec.install.overrideJob raw extension. Successful exploitation allows the injected Job to run with the controller's elevated privileges, leading to arbitrary code execution and privilege escalation, potentially accessing cluster-wide secrets.

CVSS v3
9.9
EG Score
9.9(medium)
EG Risk
45(Track)
EG Risk 45/100SSVC: 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
Severity99% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
40%
KEV
Not listed

Published

August 12, 2026

Last Modified

September 8, 2026

Advisory Details (8)

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

2514219 – (CVE-2026-73268) CVE-2026-73268 cluster-curator-controller: cluster-curator-controller: spec.install.overrideJob allows arbitrary Job spec injection

https://bugzilla.redhat.com/show_bug.cgi?id=2514219
redhat Patch Available

CVE-2026-73268 - 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-2026-73268
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:59593
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-2026-73268(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 / 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
redhatmulticluster-engine/cluster-curator-controller-rhel9:17867507002026-08-25redhat

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 88× in last 7d / 350× 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 416 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-73268?
CVE-2026-73268 is a critical vulnerability published on August 12, 2026. A flaw was found in the cluster-curator-controller component of multicluster engine (MCE). A tenant with create or update permissions on ClusterCurator resources can inject an arbitrary Job specification. This is possible because the CreateJob() function does not validate user-controlled input when…
When was CVE-2026-73268 disclosed?
CVE-2026-73268 was first published in the National Vulnerability Database on August 12, 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-2026-73268 actively exploited?
CVE-2026-73268 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 60.3% of all scored CVEs.
What is the CVSS score of CVE-2026-73268?
CVE-2026-73268 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2026-73268?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73268, 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.

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