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CVE-2026-100707

HighCVSS 8.3 / 10
Published Sep 26, 2026·Last modified Sep 27, 2026
Affected Components(114)
kyverno/kyverno
helm-chart-v2.0.3-rc1
kyverno/kyverno
1.4.2-rc2
kyverno/kyverno
1.3.5
1 / 38
Description

Kyverno before 1.19.1 contains a namespace isolation bypass in the apiCall context entry of namespaced Policy resources due to inconsistent path interpretation between validation and execution. A low-privilege tenant can use percent-encoded dot-segments in urlPath to bypass namespace checks and read resources from other namespaces using the Kyverno admission controller's ServiceAccount credentials.

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Risk Scores
Base Score
8.3

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability.

Threat Intelligence
5.7

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
0.46%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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