CVE-2026-122307
Kyverno before 1.19.2 Policy Bypass via admissionpolicygenerator PolicyException Handling
Kyverno before 1.19.2 contains a policy bypass vulnerability in the admissionpolicygenerator controller, which folds PolicyExceptions into generated ValidatingAdmissionPolicies while ignoring the --enablePolicyException, --exceptionNamespace, and policy kind gates. Users with namespaced create rights on PolicyExceptions can inject negated matchConditions into the generated policies to admit violating resources, bypassing cluster-wide enforcement.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| kyverno kyverno github.com/kyverno/kyverno
golang |
≥ 0; < 1.19.2 (affected, semver) 1.19.2 (unaffected, semver) Other versions: unaffected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 8.3 high |
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N | CNA: VulnCheck |
| 3.1 / 7.7 high |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N | CNA: VulnCheck |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://github.com/kyverno/kyverno/security/advisories/GHSA-qc9c-3fgf-cgq8CNA: VulnCheck · vendor-advisory
- https://www.vulncheck.com/advisories/kyverno-before-1.19.2-policy-bypass-via-admissionpolicygenerator-policyexception-handlingCNA: VulnCheck · third-party-advisory
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