CVE-2026-122310
Published:November 05, 2026
Updated:November 05, 2026
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.
Affected Packages
https://github.com/kyverno/kyverno.git (GITHUB):
Affected version(s) >=v1.15.3-rc.1 <v1.19.2 || >=v1.16.3-rc.1 <v1.19.2 || >=v1.17.0-rc.1 <v1.19.2Fix Suggestion:
Update to version v1.19.2github.com/kyverno/kyverno (GO):
Affected version(s) >=v1.17.0-rc.1 <v1.19.2 || >=v1.15.3-rc.1 <v1.19.2 || >=v1.16.3-rc.1 <v1.19.2Fix Suggestion:
Update to version v1.19.2Related Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
9.4
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
HIGH
CVSS v3
Base Score:
9.9
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Interpretation Conflict