CVE-2026-122310
Kyverno 1.19.1 before 1.19.2 Privilege Escalation via Policy apiCall urlPath
CVSS Score
9.9
EPSS Score
0.0%
EPSS Percentile
0th
Kyverno from 1.19.1 before 1.19.2 validates a Policy's context.apiCall urlPath after cleaning it but executes the raw path, whose fragment or query the Kubernetes client discards. A namespace-scoped user who can create a Policy can hide ../ segments behind # or ? to reach cluster-scoped endpoints with Kyverno's ServiceAccount, gaining cluster admin.
| CWE | CWE-436 |
| Vendor | kyverno |
| Product | kyverno |
| Published | Nov 5, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
kyverno / kyverno
1.19.1 < 1.19.2
References
Credits
cherez0ff