VDB

CVE-2026-41485

CVE-2026-41485 PUBLISHED CVSS 7.699999809265137 HIGH

Kyverno is a policy engine designed for cloud native platform engineering teams. Prior to versions 1.17.2 and 1.16.4, an unchecked type assertion in the `forEach` mutation handler allows any user with permission to create a `Policy` or `ClusterPolicy` to crash the cluster-wide background controller into a persistent CrashLoopBackOff. The same bug also causes the admission controller to drop connections and block all matching resource operations. The crash loop persists until the policy is deleted. The vulnerability is confined to the legacy engine, and CEL-based policies are unaffected. Versions 1.17.2 and 1.16.4 fix the issue.

EPSS 0.05% · 16.2th percentile

Risk Scores

CVSS v3.1
7.699999809265137
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
EPSS Score
0.05%
16.2th percentile

Affected Products

VendorProductVersions
kyvernokyverno< 1.16.4, >= 1.17.0-rc1, < 1.17.2

Timeline

  • Apr 24, 2026 CVE Published
  • Apr 24, 2026 PoC Published
  • May 6, 2026 Security Advisory
  • May 18, 2026 EPSS Score
  • May 19, 2026 EPSS Score
  • May 20, 2026 EPSS Score
  • May 21, 2026 EPSS Score
  • May 22, 2026 EPSS Score
  • May 23, 2026 EPSS Score
  • May 24, 2026 EPSS Score
  • May 25, 2026 EPSS Score
  • May 26, 2026 EPSS Score
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