Openstack-network-exporter: basic-auth uses plaintext password storage and non-constant-time comparison
CVSS score
7.4
EPSS probability
—
Risk score
0.7
Published
6 h ago
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Impact on My Inventory
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Vulnerability description
CVE AI research
DayBreach AI Explanation
Verified against sourcesSources read
1
Source agreement
Tam uyum
Evidence confidence
%55
Short explanation
A flaw in openstack-network-exporter causes the basic authentication mechanism to be silently bypassed when Transport Layer Security is omitted or misconfigured. This allows adjacent network attackers to access sensitive dataplane metrics without credentials.
The silent bypass of the authentication mechanism enables unauthorized parties to inspect network topology and sensitive data directly. This information disclosure flaw compromises overall system security.
What should be done?
- Follow official vendor advisories.
- Ensure TLS configurations are complete and properly set up.
- Verify that authentication mechanisms operate correctly.
Chain of evidence and sources
openstack-network-exporter bileşeninde TLS eksik veya yanlış yapılandırıldığında kimlik doğrulama mekanizması sessizce atlanır.
Fail-open tasarımı, komşu ağ saldırganının kimlik bilgisi olmadan hassas Open vSwitch ve Open Virtual Network metriklerine erişmesine izin verir.
Bu güvenlik açığı köprü isimlerinin, port sayaçlarının, OVN denetleyici durumunun ve host topolojisinin ifşa olmasına neden olur.
Show the technical text from the sources
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.
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE: CWE-208
Explanation produced with the local gemini-flash-lite-latest model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2026-83535 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | Red Hat | Red Hat OpenStack Platform 18.0 | View |
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 7.4 | CVSS V3_1 | HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N | CVE CNA |
| 7.4 | CVSS V31 | HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N | NVD |
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-83535 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-83535 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
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