CVE-2026-100703 Kyverno - Broken Access Control

Kyverno 1.16.0 through 1.19.0 contains an information disclosure vulnerability caused by globalcontext.Lib CEL library being registered without namespace confinement, letting tenants access cluster-scoped cached data from unauthorized namespaces, exploit requires tenant to create namespaced policies.

CVSS base score 7.7 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.23% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Information Disclosure
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Published
26 September 2026
Updated
15 October 2026
Weakness
CWE-200

Vendor fix

Upgrade to version 1.19.1 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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