CVE-2026-122316 (GCVE-0-2026-122316)

Vulnerability from cvelistv5 – Published: 2026-11-05 02:25 – Updated: 2026-11-05 02:25
VLAI
Title
Kyverno 1.17.0 before 1.19.2 Cross-Namespace Write via NamespacedMutatingPolicy mutateExisting
Summary
Kyverno from 1.17.0 before 1.19.2 contains a missing authorization vulnerability in the mutate-existing background processor that allows namespaced tenants to modify resources outside their namespace. Attackers can create a NamespacedMutatingPolicy targeting Namespace objects or victim-namespace resources via CEL expressions, making the background-controller ServiceAccount strip Pod Security labels cluster-wide.
Severity
8.4 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:L/SI:H/SA:N
8.5 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N
CWE
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 7433 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
kyverno kyverno Affected: 1.17.0 , < 1.19.2 (semver)
Unaffected: 1.19.2 (semver)
    cpe:2.3:a:kyverno:kyverno:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-21 00:00
Credits
ttzero25
Show details on NVD website
To clipboard 

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}



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