CVE-2026-122307

Kyverno before 1.19.2 Policy Bypass via admissionpolicygenerator PolicyException Handling

8.3 High

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: High
Availability: None

Exploit likelihood

0.24%Unchanged since Nov 5, 2026

What each source reports

CVE List Score used 8.3

Kyverno before 1.19.2 Policy Bypass via admissionpolicygenerator PolicyException Handling

Record: CVE-2026-122307
CVSS 4.0: 8.3 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N
CVSS 3.1: 7.7 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
Weakness: CWE-863
Updated: 2026-11-05

EUVDEUVD-2026-117218 8.3

Record: EUVD-2026-117218
CVSS 4.0: 8.3 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N
Updated: 2026-11-05

GitHub AdvisoriesGHSA-h448-wvj6-xqpr 8.3

Kyverno before 1.19.2 contains a policy bypass vulnerability in the admissionpolicygenerator...

Record: GHSA-h448-wvj6-xqpr
CVSS 4.0: 8.3 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 7.7 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
Weakness: CWE-863
Updated: 2026-11-05

NVD 8.3

Record: CVE-2026-122307
CVSS 4.0: 8.3 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 7.7 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
Weakness: CWE-863
Updated: 2026-11-05

OSV 8.3

Kyverno before 1.19.2 Policy Bypass via admissionpolicygenerator PolicyException Handling

Record: CVE-2026-122307
CVSS 4.0: 8.3 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N
Weakness: CWE-863
Updated: 2026-11-07

Affected products

kyverno

History

History
Recorded	Changed	Sources
Nov 5, 2026	aliases, references	NVD, OSV
Nov 5, 2026	cwes, references, severity, title	CVE List, GitHub Advisories, NVD
Nov 5, 2026	first indexed	EUVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-122307 is a high vulnerability (CVSS 8.3) in Kyverno, published November 5, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.24%, the 15th percentile. No source names a fixed version.