CVE-2026-83535
Openstack-network-exporter: basic-auth uses plaintext password storage and non-constant-time comparison
- State
- Published
- Severity
- 7.4 High
- Published
- Oct 12, 2026
- Updated
- Oct 13, 2026
- Reserved
- Aug 31, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.4 High | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N | redhat |
Weaknesses
- CWE-208 Observable Timing Discrepancy
Affected Products
| Product | Versions |
|---|---|
Red Hat OpenStack Platform 18.0Red Hat |
References
- https://access.redhat.com/security/cve/CVE-2026-83535vdb-entry
- RHBZ#2526402issue-tracking
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