CVE-2026-84200

CRITICALPre-NVD 9.09.0—
EchelonGraph scoreHIGH confidence

Score 9.0 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-01. a secondary CVSS source baseline 9.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
9.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.0Exploit: Elevated riskExposed: 0

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

Kyverno versions v1.9.0 through v1.12.7 contain a policy exception handling flaw. When a policy in enforce mode is combined with two PolicyExceptions, the less restrictive exception takes precedence, allowing an attacker to bypass the policy by crafting a resource name that matches the second exception's name pattern (e.g., '*ingress*'). This can be used to circumvent policies such as one blocking hostPath volumes. Fixed in v1.13.0.

CVSS v3
9.0
EG Score
9.0(high)
EG Risk
57(Track*)
EG Risk 57/100SSVC: 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
Severity90% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
8%
KEV
Not listed

Published

September 1, 2026

Last Modified

September 10, 2026

Advisory Details (2)

Auto-updated Sep 1, 2026
Patch available. Sources: github.
generic

Kyverno before v1.13.0 Policy Bypass via Multiple Exceptions | Advisories | VulnCheck

https://www.vulncheck.com/advisories/kyverno-before-1.13.0-policy-bypass-via-multiple-exceptions
github Patch Available

Bypassing Kyverno Policies via Double Policy Exceptions · Advisory · kyverno/kyverno · GitHub

https://github.com/kyverno/kyverno/security/advisories/GHSA-gg4x-fgg2-h9w9

Vendor Advisories for CVE-2026-84200(1)

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

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFixed inDependents
github.com/kyverno/kyverno—1.13.0—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 58× in last 7d / 154× 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 154 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-84200?
CVE-2026-84200 is a critical vulnerability published on September 1, 2026. Kyverno versions v1.9.0 through v1.12.7 contain a policy exception handling flaw. When a policy in enforce mode is combined with two PolicyExceptions, the less restrictive exception takes precedence, allowing an attacker to bypass the policy by crafting a resource name that matches the second…
When was CVE-2026-84200 disclosed?
CVE-2026-84200 was first published in the National Vulnerability Database on September 1, 2026, with the most recent update on September 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-84200 actively exploited?
CVE-2026-84200 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 92.3% of all scored CVEs.
What is the CVSS score of CVE-2026-84200?
CVE-2026-84200 has a CVSS v3 base score of 9.0 (NVD).
How do I remediate CVE-2026-84200?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-84200, 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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