CVE-2026-18951

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-10. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.8Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in the Red Hat OpenShift AI (RHOAI) overlay for the training operator. The RHOAI overlay incorrectly aggregates trainjobs management permissions into the native Kubernetes edit ClusterRole. This allows any user with edit ClusterRole permissions in a namespace to create, modify, and delete TrainJobs. When combined with a separate vulnerability (TRN-01) that permits arbitrary pod configurations, a remote attacker with namespace editor privileges could exploit this to escalate privileges, potentially leading to arbitrary code execution.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity88% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
46%
KEV
Not listed

Published

August 10, 2026

Last Modified

August 27, 2026

Advisory Details (2)

Auto-updated Aug 10, 2026
Patch available. Sources: redhat.
redhat

2511187 – (CVE-2026-18951) CVE-2026-18951 odh-training-operator-rhel9: [Trainer v2 Security] TRN-02: RHOAI overlay aggregates trainjobs CRUD into standard edit ClusterRole

https://bugzilla.redhat.com/show_bug.cgi?id=2511187
redhat Patch Available

CVE-2026-18951 - 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-2026-18951

Vendor Advisories for CVE-2026-18951(4)

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

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatrhoai/odh-training-operator-rhel9:17873616772026-08-27redhat
redhatrhoai/odh-training-operator-rhel9:17848143522026-08-11redhat
redhatrhoai/odh-training-operator-rhel9:17851884612026-08-11redhat

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 37× in last 7d / 158× 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 236 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-18951?
CVE-2026-18951 is a high vulnerability published on August 10, 2026. A flaw was found in the Red Hat OpenShift AI (RHOAI) overlay for the training operator. The RHOAI overlay incorrectly aggregates trainjobs management permissions into the native Kubernetes edit ClusterRole. This allows any user with edit ClusterRole permissions in a namespace to create, modify, and…
When was CVE-2026-18951 disclosed?
CVE-2026-18951 was first published in the National Vulnerability Database on August 10, 2026, with the most recent update on August 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-18951 actively exploited?
CVE-2026-18951 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 54.0% of all scored CVEs.
What is the CVSS score of CVE-2026-18951?
CVE-2026-18951 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-18951?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-18951, 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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