CVE-2026-78427

Admission Control Bypass via Hardcoded Sidecar Image Exemption

Published Sep 17, 2026 CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L'}

Type Values Removed Values Added
First Time appeared Suse
Suse github.com Neuvector Neuvector
CPEs cpe:2.3:a:suse:github.com_neuvector_neuvector:*:*:*:*:*:*:*:*
Vendors & Products Suse
Suse github.com Neuvector Neuvector
Metrics cvssV4_0

{'score': 5.3, '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'}

Type Values Removed Values Added
First Time appeared Neuvector
Neuvector neuvector
Vendors & Products Neuvector
Neuvector neuvector
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Admission Control Bypass via Hardcoded Sidecar Image Exemption
Weaknesses CWE-807
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
suse
Published
Updated
Sep 28, 2026, 12:06 PM
Reserved
Aug 24, 2026, 3:33 PM
Status
Awaiting Analysis
Published
Sep 17, 2026, 10:17 AM
Modified
Sep 28, 2026, 1:17 PM