Kyverno up to 1.19.1 Resource Validation resource.get/resource.post resource privileges management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.3$0-$5k1.41+

Summaryinfo

A vulnerability labeled as very critical has been found in Kyverno up to 1.19.1. This impacts the function resource.get/resource.post of the component Resource Validation. Executing a manipulation of the argument resource can lead to privileges management. This vulnerability appears as CVE-2026-122311. The attack may be performed from remote. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as very critical was found in Kyverno up to 1.19.1. This vulnerability affects the function resource.get/resource.post of the component Resource Validation. The manipulation of the argument resource with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Kyverno from 1.16.0 before 1.19.2 fails to validate path segments in the resource argument of resource.get() and resource.post(), allowing namespaced CEL policies to escape their namespace. Tenants who can create a NamespacedValidatingPolicy can insert .. segments to read and write arbitrary cluster objects using the admission controller's ServiceAccount, leading to cluster takeover.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-122311 since 11/05/2026. The exploitation appears to be easy. The attack can be initiated remotely. Additional levels of successful authentication are necessary for exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 11/05/2026). The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading to version 1.19.2 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 9.5
VulDB Meta Temp Score: 9.3

VulDB Base Score: 9.1
VulDB Temp Score: 8.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 9.9
CNA Vector (VulnCheck): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kyverno 1.19.2

Timelineinfo

11/05/2026 Advisory disclosed
11/05/2026 +0 days CVE reserved
11/05/2026 +0 days VulDB entry created
11/05/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CNA: VulnCheck
CVE: CVE-2026-122311 (🔒)

GCVE (CVE): GCVE-0-2026-122311
GCVE (VulDB): GCVE-100-431308

Entryinfo

Created: 11/05/2026 03:46
Changes: 11/05/2026 03:46 (77)
Complete: 🔍
Cache ID: 216::103

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