CVE-2026-83535CWE-208
CVE-2026-83535
High · published October 12, 2026
What it is
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.
The record
Technical detail
- CVSS v3.1
- 7.4 · HIGH
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- CVSS v4.0
- Not supplied
- EPSS
- 0.00282 · 19.6th percentile
- Weakness
- CWE-208 · Observable Timing Discrepancy
- Published
- 2026-10-12T23:16Z
References (2)
EPSS history
Timeline
14 OCT 03:33Z
EPSS moved — → 0%
epss
12 OCT 18:50Z
Openstack-network-exporter: basic-auth uses plaintext password storage and non-constant-time comparison
cvelistv5
12 OCT 18:50Z
Openstack-network-exporter: basic-auth uses plaintext password storage and non-constant-time comparison
cvelistv5