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TI-2026-71242 Aliases CVE-2026-83535GHSA-45q5-ghf8-56pr

openstack-network-exporter basic auth bypassed without valid TLS

Priority LOW 34CWE-208Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Information disclosure
Confidentiality · integrity · availability
High · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-208.

Summary

When an operator configures user authentication but omits or misconfigures TLS, openstack-network-exporter silently bypasses basic authentication. An adjacent network attacker can then read OVS and OVN dataplane metrics without credentials, enumerating bridge names, port counters, OVN controller state and host topology. The flaw is tracked as CVE-2026-83535 and GHSA-45q5-ghf8-56pr, is classified as CWE-208, and has a CVSS 3.1 base score of 7.4 (HIGH).

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00282 20th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Red HatRed Hat OpenStack Platform 18.0——No fix listedCNA
  • Red Hat OpenStack Platform 18.0 VendorRed Hat Affected — Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:/a:redhat:openstack:18.018.0—Red Hat
  • cpe:/a:redhat:openstack:18.0 Versions 18.0 — ·Red Hat

Remediation

The sources list no fixed version for Red Hat OpenStack Platform 18.0, and Red Hat lists no remediation plan for it.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat OpenStack Platform 18.0AffectedNo fix yet

Timeline

  1. 2026-10-12 Threatist record created from CVE-2026-83535
  2. 2026-10-13 Alias added: GHSA-45q5-ghf8-56pr
  3. 2026-10-13 Affected versions changed · Red Hat
  4. 2026-10-13 CVSS score added · Red Hat
  5. 2026-10-13 Priority changed: MEDIUM → LOW
  6. 2026-10-13 CISA SSVC decision points changed

References

Other 2

  • TI-2019-15875 Protection mechanism failure in Jenkins Pipeline: Groovy Plugin KEVCVSS 3.1CRITICAL 9.9
  • TI-2019-15874 Protection mechanism failure in Jenkins Script Security Plugin KEVCVSS 3.1CRITICAL 9.9
  • TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-05363 Code injection in Elastic Kibana KEVCVSS 3.1CRITICAL 10.0
  • TI-2019-03949 Out-of-bounds write in ESXi and Horizon DaaS KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-16080 A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153… KEVCVSS 3.1CRITICAL 9.8
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Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences