# CVE-2026-102159: Arista CloudVision-CUE access control bypass in backend

Source: https://junglewise.ai/threats/cve-2026-102159-an-access-control-flaw-in-the-cv-cue-backend-may-allow-an  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-06. Updated: 2026-10-06  
License: CC BY 4.0 with a link back

CVE-2026-102159 · Severity: critical · CVSS 9.8 · Published 2026-10-06

Arista's CloudVision-CUE is a Wi-Fi management service deployed on-premises as part of CloudVision Portal. An unauthenticated attacker on the network can bypass access controls to reach internal backend functions, exposing sensitive location data and potentially disrupting Wi-Fi services. This is a critical vulnerability affecting all on-premises deployments.

Technologies: [Arista Cloudvision Portal](https://junglewise.ai/threats/technologies/cloudvision-portal). Vendors: [Arista](https://junglewise.ai/threats/vendors/arista).

## Quick answers

**Is CVE-2026-102159 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-102159 being exploited in the wild.

**How severe is CVE-2026-102159?** Critical severity, with a CVSS score of 9.8, published 6 October 2026.

**Which products and versions are affected?** Arista Cloudvision Portal 2022.3.0 through 2026.2.0.

**Is there a fix for CVE-2026-102159?** Yes: fixed in CloudVision Portal 2022.3.1 and later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-102159 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-102159?** Check whether you run Arista Cloudvision Portal at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in CloudVision Portal 2022.3.1 and later

## Technical details

An access-control flaw in the CV-CUE backend (CWE-306: Missing Authentication for Critical Function) allows unauthenticated network attackers to access functionality intended only for internal services. The vulnerability requires network access but no authentication, user interaction, or special conditions; successful exploitation exposes location information and may cause service disruption. A fix is available in CloudVision Portal 2022.3.1 and later.

## Affected products

- Arista CloudVision Portal 2022.3.0 through 2026.2.0

## Timeline

- 2026-10-06: disclosed
- 2026-10-06: advisory: Arista Security Advisory 0190

## References

- [https://www.arista.com/en/support/advisories-notices/security-advisory/24806-security-advisory-0190](https://www.arista.com/en/support/advisories-notices/security-advisory/24806-security-advisory-0190)

## Related threats

- [Arista CloudVision CUE authentication bypass via IP spoofing](https://junglewise.ai/threats/cve-2026-102161-an-unauthenticated-attacker-located-on-an-adjacent-private)
- [Arista CloudVision CUE OS command injection in backup management](https://junglewise.ai/threats/cve-2026-102160-an-operating-system-os-command-injection-vulnerability-in)
- [Arista CloudVision CUE SQL injection in API parameter validation](https://junglewise.ai/threats/cve-2026-102158-improper-validation-of-selected-cloudvision-cue-application)
- [Arista CloudVision CUE IDOR in file-serving interface](https://junglewise.ai/threats/cve-2026-102157-an-insecure-direct-object-reference-idor-vulnerability-in-a)
- [Arista CloudVision CUE LDAP injection](https://junglewise.ai/threats/cve-2026-102156-improper-neutralization-of-lightweight-directory-access-protocol)