---
id: CVE-2026-83535
title: A flaw was found in openstack-network-exporter
summary: >-
  A flaw was found in openstack-network-exporter. When an operator configures
  user authentication but omits or misconfigures Transport Layer Security (TLS),
  the basic authentication mechanism is silently bypassed. This fail-open design
  all…
severity: high
cvss: 7.4
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-208
published: '2026-10-12'
updated: '2026-10-12'
sourceUpdated: '2026-10-12T19:16:39.850'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-83535'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-83535'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2526402'
    label: secalert@redhat.com
tags:
  - nvd
ingestedAt: '2026-10-12T20:03:12.357Z'
---

## Overview

A flaw was found in openstack-network-exporter. When an operator configures user authentication but omits or misconfigures Transport Layer Security (TLS), the basic authentication mechanism is silently bypassed. This fail-open design allows an adjacent network attacker to access sensitive Open vSwitch (OVS) and Open Virtual Network (OVN) dataplane metrics without credentials. Consequently, an attacker can enumerate bridge names, port counters, OVN controller state, and host topology, leading to information disclosure.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.