Kyverno's PolicyException objects can be created in any namespace by default
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-285.
Summary
Kyverno is a policy engine designed for Kubernetes. A kyverno ClusterPolicy, ie. "disallow-privileged-containers," can be overridden by the creation of a PolicyException in a random namespace. By design, PolicyExceptions are consumed from any namespace. Administrators may not recognize that this allows users with privileges to non-kyverno namespaces to create exceptions. This vulnerability is fixed in 1.13.0.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| kyverno | kyverno | before 1.13.0 | 1.13.0 | Patch available | CNA |
| — | github.com/kyverno/kyverno (Go) | before 1.13.0 | 1.13.0 | Patch available | GHSA-qjvc-p88j-j9rm |
- kyverno Vendorkyverno Affected before 1.13.0 Fixed in 1.13.0 Patch available CNA
- github.com/kyverno/kyverno (Go) Vendor— Affected before 1.13.0 Fixed in 1.13.0 Patch available GHSA-qjvc-p88j-j9rm
Remediation
- Fix · CNA kyverno (kyverno) Fixed in 1.13.0
- Fix · GHSA-qjvc-p88j-j9rm github.com/kyverno/kyverno (Go) Fixed in 1.13.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2024-48921
- 2026-10-03 Alias added: GHSA-qjvc-p88j-j9rm
References
More kyverno vulnerabilities
- TI-2026-57895 Kyverno before v1.13.0 Policy Bypass via Multiple Exceptions CVSS 4.0CRITICAL 9.4
- TI-2026-39369 Missing authorization in kyverno CVSS 3.1CRITICAL 9.6
- TI-2026-17733 Kyverno Cross-Namespace Privilege Escalation via Policy apiCall CVSS 3.1CRITICAL 10.0
- TI-2026-29924 Kyverno: ServiceAccount token leaked to external servers via apiCall service URL CVSS 3.1CRITICAL 9.1
- TI-2026-29524 kyverno apicall servicecall implicit bearer token injection leaks kyverno serviceaccount token CVSS 3.1HIGH 8.1
- TI-2025-14241 Kyverno before v1.13.4 SSRF via Service Call CVSS 4.0MEDIUM 6.9
Sources
- CVE-2024-48921 · CVE Program
- CVE-2024-48921 · NVD
- FIRST EPSS
- GHSA-qjvc-p88j-j9rm · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences