CVE-2026-100707 Kyverno - Broken Access Control

Kyverno < 1.19.1 contains a broken access control caused by inconsistent path interpretation in apiCall context entry of namespaced Policy resources, letting low-privilege tenants bypass namespace isolation and read other namespaces' resources, exploit requires low-privilege tenant access.

CVSS base score 7.7 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.46% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Information Disclosure, Broken Access Control
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-22

Vendor fix

Update 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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