Metrics disclosure via TLS-dependent authentication bypass
Published Oct 12, 2026 · Updated Oct 12, 2026
Authentication bypass in openstack-network-exporter allows attackers to read OVS and OVN metrics without credentials over the network. The metrics authentication mechanism skips configured basic authentication when TLS is omitted or misconfigured, according to the supplied source record. Adjacent network access to the exporter is required; exposed metrics reveal bridge names, port counters, OVN controller state, and host topology.
Summary
What happened
Authentication bypass in openstack-network-exporter allows attackers to read OVS and OVN metrics without credentials over the network. The metrics authentication mechanism skips configured basic authentication when TLS is omitted or misconfigured, according to the supplied source record. Adjacent network access to the exporter is required; exposed metrics reveal bridge names, port counters, OVN controller state, and host topology.
The record
- CVE
- CVE-2026-83535
- Published
- Oct 12, 2026
- Updated
- Oct 12, 2026
- Vendor
- Commonhaus Foundation
- Product
- Red Hat OpenStack Platform 18.0
- Classifications
- T1016
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 12, 2026CVE publishedPublication date reported by the CVE source.
- Oct 12, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Activity data is delayed. The latest report is Sep 28, 2026.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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