OCTOBER 9, 2026
Live Feed
Back to database
Case File

CVE-2026-100707

HIGH · CVSS 7.7 EPSS 0.46% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-26 · Last synced 2026-10-09

CyberRota Analysis

AI-Generated

Kyverno versions prior to 1.19.1 are vulnerable to a namespace isolation bypass, allowing low-privilege tenants to exploit inconsistencies in path interpretation during policy validation and execution. This vulnerability enables unauthorized access to resources across namespaces by leveraging percent-encoded dot-segments in the urlPath, potentially compromising sensitive data. Organizations using Kyverno for Kubernetes admission control should prioritize patching to mitigate this high-severity risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-100707
Severity
HIGH
CVSS
7.7
EPSS
0.46%

Original NVD 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.