Vulnerability · Published Sep 17, 2026 · Assigned by suse

CVE-2026-78427Admission Control Bypass via Hardcoded Sidecar Image Exemption

Medium 5.3

In plain English

A medium-severity security flaw in github.com/neuvector/neuvector from SUSE. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities).

Severity (CVSS 4.0)5.3Medium
Exploit odds (30 days)0.2%top 85.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

VendorProductVersions
SUSE github.com/neuvector/neuvector 0 – through v5.6.1

Weakness: CWE-807 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

References