CVE-2026-78427CWE-807

CVE-2026-78427

published September 17, 2026

CVSS
4.3
EPSS
0%
Percentile
13.5
In the wild
Unconfirmed
What it is

The NeuVector admission webhook silently excludes containers from policy evaluation when their image path matches one of three hardcoded service mesh sidecar images. Since the image path is entirely controlled by the workload author, any user capable of deploying workloads can evade admission deny rules simply by naming their image path after one of these sidecar images.

The record
Technical detail
CVSS
4.3 · NONE
CVSS v4.0
Not supplied
EPSS
0.00235 · 13.5th percentile
Weakness
CWE-807 · Reliance on Untrusted Inputs in a Security Decision
Published
2026-09-17T14:17Z
References (2)
EPSS history
Timeline
  • 18 SEP 04:01Z
    EPSS moved — → 0%
    epss
  • 17 SEP 09:33Z
    Admission Control Bypass via Hardcoded Sidecar Image Exemption
    cvelistv5