CVE-2026-22806

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.1 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 64% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
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.

vCluster Platform provides a Kubernetes platform for managing virtual clusters, multi-tenancy, and cluster sharing. Prior to versions 4.6.0, 4.5.4, 4.4.2, and 4.3.10, when an access key is created with a limited scope, the scope can be bypassed to access resources outside of it. However, the user still cannot access resources beyond what is accessible to the owner of the access key. Versions 4.6.0, 4.5.4, 4.4.2, and 4.3.10 fix the vulnerability. Some other mitigations are available. Users can limit exposure by reviewing access keys which are scoped and ensuring any users with access to them have appropriate permissions set. Creating automation users with very limited permissions and using access keys for these automation users can be used as a temporary workaround where upgrading is not immediately possible but scoped access keys are needed.

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
36%
KEV
Not listed

Published

January 29, 2026

Last Modified

June 17, 2026

Advisory Details (1)

Auto-updated May 22, 2026
Patch available. Sources: github.
github Patch Available

Access Keys Allow Access Beyond Scope · Advisory · loft-sh/loft · GitHub

https://github.com/loft-sh/loft/security/advisories/GHSA-c539-w4ch-7wxq

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 48× 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 127 total refreshes for this CVE.

  1. 2026-07-30 01:30 UTCEPSS rescore
  2. 2026-07-27 14:13 UTCEPSS rescore
  3. 2026-07-26 14:54 UTCEPSS rescore
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  10. 2026-07-23 03:06 UTCEG score recompute
  11. 2026-07-22 14:08 UTCEPSS rescore
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  1. 2026-07-15 02:00 UTCEPSS rescore
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  3. 2026-07-13 19:07 UTCOSV refresh
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  22. 2026-06-30 23:22 UTCEPSS rescore
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  24. 2026-06-29 14:06 UTCEPSS rescore
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  27. 2026-06-28 04:56 UTCEPSS rescore
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  29. 2026-06-27 03:08 UTCEPSS rescore
  30. 2026-06-25 16:46 UTCOSV refresh
  31. 2026-06-25 13:49 UTCEPSS rescore
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  39. 2026-06-21 14:56 UTCEPSS rescore
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  41. 2026-06-21 01:59 UTCEPSS rescore
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  43. 2026-06-19 19:25 UTCEPSS rescore
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  45. 2026-06-18 17:52 UTCEPSS rescore
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  49. 2026-06-14 23:18 UTCEPSS rescore
  50. 2026-06-13 23:00 UTCEPSS rescore
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  52. 2026-06-12 23:12 UTCEPSS rescore
  53. 2026-06-11 14:00 UTCEPSS rescore
  54. 2026-06-10 22:18 UTCEPSS rescore
  55. 2026-06-10 13:22 UTCEPSS rescore
  56. 2026-06-08 14:17 UTCEPSS rescore
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  58. 2026-06-07 15:25 UTCEPSS rescore
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  60. 2026-06-06 13:47 UTCEPSS rescore
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  63. 2026-06-05 22:47 UTCEPSS rescore
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  66. 2026-06-04 13:12 UTCEPSS rescore
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  69. 2026-06-02 20:13 UTCEPSS rescore
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  71. 2026-06-01 15:57 UTCOSV refresh
  72. 2026-06-01 13:51 UTCEPSS rescore
  73. 2026-06-01 13:51 UTCEPSS rescore
  74. 2026-06-01 13:51 UTCEPSS rescore
  75. 2026-05-31 22:30 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-22806?
CVE-2026-22806 is a critical vulnerability published on January 29, 2026. vCluster Platform provides a Kubernetes platform for managing virtual clusters, multi-tenancy, and cluster sharing. Prior to versions 4.6.0, 4.5.4, 4.4.2, and 4.3.10, when an access key is created with a limited scope, the scope can be bypassed to access resources outside of it. However, the user…
When was CVE-2026-22806 disclosed?
CVE-2026-22806 was first published in the National Vulnerability Database on January 29, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-22806 actively exploited?
CVE-2026-22806 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 63.6% of all scored CVEs.
What is the CVSS score of CVE-2026-22806?
CVE-2026-22806 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-22806?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-22806, 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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