CVE-2026-10840

CRITICALPre-NVD 7.19.6▲
EchelonGraph scoreMEDIUM confidence

Score 9.6 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-04. the CNA's CVSS baseline 7.1; sources differ by 2.5.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:redhat, epss, ghsa
Trending — 4 sources updated this week
9.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in the OpenShift Pipelines operator. The tekton-scheduler-rolebinding ClusterRoleBinding grants the system:authenticated group write access to Kueue and cert-manager custom resources via the tekton-scheduler-role ClusterRole. When Kueue or cert-manager CRDs are present on the cluster, any authenticated user can disrupt workload scheduling, tamper with scheduling priorities, delete other tenants' Workload objects, or induce cert-manager to overwrite TLS Secrets including the default ingress controller certificate.

CVSS v3
7.1
EG Score
9.6(medium)
EG Risk
43(Track)
EG Risk 43/100SSVC: 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
Severity96% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
13%
KEV
Not listed

Published

June 4, 2026

Last Modified

September 7, 2026

Advisory Details (2)

Auto-updated Jun 4, 2026
Patch available. Sources: redhat.
redhat

2484720 – (CVE-2026-10840) CVE-2026-10840 openshift-pipelines-operator-rh: openshift-pipelines-operator: tekton-scheduler-rolebinding grants system:authenticated write access to Kueue and cert-manager resources

https://bugzilla.redhat.com/show_bug.cgi?id=2484720
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-10840

Vendor Advisories for CVE-2026-10840(3)

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

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatopenshift-builds/openshift-builds-rhel9-operator:17841211082026-07-16redhat
redhatopenshift-builds/openshift-builds-rhel9-operator:17833416092026-07-08redhat

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 11× in last 7d / 97× 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 578 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-10840?
CVE-2026-10840 is a critical vulnerability published on June 4, 2026. A flaw was found in the OpenShift Pipelines operator. The tekton-scheduler-rolebinding ClusterRoleBinding grants the system:authenticated group write access to Kueue and cert-manager custom resources via the tekton-scheduler-role ClusterRole. When Kueue or cert-manager CRDs are present on the…
When was CVE-2026-10840 disclosed?
CVE-2026-10840 was first published in the National Vulnerability Database on June 4, 2026, with the most recent update on September 7, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-10840 actively exploited?
CVE-2026-10840 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 87.4% of all scored CVEs.
What is the CVSS score of CVE-2026-10840?
CVE-2026-10840 has a CVSS v4.0 base score of 7.1 (CNA self-assessment; NVD's own analysis pending). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.6.
How do I remediate CVE-2026-10840?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-10840, 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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