Cross-Namespace Privilege Escalation Vulnerability in Kyverno by Nirmata
CVE-2026-41068

7.7HIGH

Key Information:

Vendor

Kyverno

Status
Kyverno
Vendor
CVE Published:
24 April 2026

What is CVE-2026-41068?

Kyverno, a cloud-native policy engine, is susceptible to a serious vulnerability due to improper validation of the configMap.namespace field. This flaw allows a namespace admin to gain unauthorized access to ConfigMaps from any namespace when using Kyverno's privileged service account, leading to a complete Role-Based Access Control (RBAC) bypass. Multi-tenant Kubernetes clusters are particularly at risk, and users are encouraged to upgrade to version 1.17.2 or later to mitigate this issue. For detailed information, refer to the official advisory.

Affected Version(s)

kyverno < 1.17.2

References

https://github.com/kyverno/kyverno/security/advisories/GH...
x_refsource_CONFIRM
https://github.com/kyverno/kyverno/commit/bbf3e5c01391d61...
x_refsource_MISC

CVSS V3.1

Score:
7.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.