Authentication Bypass Leading to Unauthorized Network Access in HPE Networking Instant ON API Endpoint (CVE-2026-76726) | HOL Guard CVE

High · CVSS 8.1CVE-2026-76726

Authentication Bypass Leading to Unauthorized Network Access in HPE Networking Instant ON API Endpoint

Answer in brief

CVE-2026-76726 records a High severity (CVSS 8.1) vulnerability in Authentication Bypass Leading to Unauthorized Network Access in HPE Networking Instant ON API Endpoint. The current sources do not mark it as known exploited. The current feed maps Hewlett Packard Enterprise (HPE)/Instant ON (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 29, 2026Updated Sep 29, 2026Source checked Sep 29, 2026First seen by HOL Sep 29, 2026Material review Sep 29, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.1
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 8.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Hewlett Packard Enterprise (HPE)/Instant ON (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Hewlett Packard Enterprise (HPE)/Instant ONgeneric	*	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Hewlett Packard Enterprise (HPE)/Instant ON.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Sep 29, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 29, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 29, 2026

Sources and claim methodology

Source referencesupport.hpe.com

Upstream source description

An authentication bypass vulnerability in the API endpoint of HPE Networking Instant ON could allow an unauthenticated remote attacker to bypass network access controls if certain preconditions outside of the attacker's control are met. Successful exploitation could allow an attacker to obtain unauthorized access to restricted networks.

Quoted source text, attributed separately from HOL analysis.