Vulnerability details
CVE-2026-122302
kyverno kyverno
Kyverno before 1.19.2 Privilege Escalation via Generate Rule Permission Check
CVSS 4.0
9.3Critical
Official description
Kyverno before 1.19.2 contains a privilege escalation vulnerability that allows namespace admins to create resources beyond their RBAC because generate-rule admission checks verify the controller's permissions, not the author's. Attackers can create a namespaced Policy with generate rules targeting other namespaces or cluster-scoped kinds, making the background controller create or clone resources cluster-wide.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.3Critical | 4.0 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| 9.8Critical | 3.1 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| kyverno | kyverno | v < 1.19.2 | CVEProject cvelistV5 (CNA) |
References and advisories
2
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Details
- Published
- 2026-11-05
- Last updated
- 2026-11-09
- State
- Published
- Assigner (CNA)
- VulnCheck
- Kolun priority
- 19 · Low
Exploit prediction (EPSS)
0.28%
Probability of exploitation in 30 days
21%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-269Improper Privilege Management