CVE-2026-122307

EUVD-2026-117218

05.11.2026, 03:17

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.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
VulnCheck	CNA	7.7 HIGH	NETWORK	LOW	LOW	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N

Base Score

CVSS 3.x

EPSS Score

Percentile: 15.82%

Early Detection

Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).

Vendor	Product	Version	Source
kyverno	kyverno	𝑥 < 1.19.2	CNA

Common Weakness Enumeration

CWE-863 - Incorrect Authorization
The software performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.

Vulnerability Media Exposure

[GERMAN] Kyverno: Mehrere Schwachstellen
Ein Angreifer kann mehrere Schwachstellen in Kyverno ausnutzen, um seine Privilegien zu erhöhen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren und um Sicherheitsvorkehrungen zu umgehen.
Published: 2026-10-21T22:00:00+00:00

References

https://github.com/kyverno/kyverno/security/advisories/GHSA-qc9c-3fgf-cgq8

https://www.vulncheck.com/advisories/kyverno-before-1.19.2-policy-bypass-via-admissionpolicygenerator-policyexception-handling