PT-2026-34849 · Kyverno · Kyverno

Published 2026-04-24 · Updated 2026-04-24 · CVE-2026-41485

Mitre

CVSS v3.1

7.7

High

AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

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.

Fix

Assertion Failure

Weakness Enumeration

CWE-617

Related Identifiers

CVE-2026-41485

Affected Products

Kyverno

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-41485 · Security Note
• https://github.com/kyverno/kyverno/security/advisories/GHSA-fpjq-c37h-cqcv · Note
• https://github.com/kyverno/kyverno/commit/76c8fdbe87328722e099e1fd44c3f21c9f7809cb · Note
• https://github.com/kyverno/kyverno/commit/80e728c2283a0c65e5adb02d8a907106e6ebe7e3 · Note