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Arista EOS Orchestrator API Component Fails to Validate Input Before Building Backend Queries, Letting Authenticated Users Access Unauthorized Data and Trigger Unintended Outbound Network Connections

Last refreshed2026-09-28

Status: NEW  |  Advisory ID: CVE-2026-17191

Key Details

CVECVE-2026-17191
CVSS Score / Version9.1 (Critical) / CVSS v3.1
Updated2026-07-30
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L
CVSS Proseattack vector is network; attack complexity is low; privileges required is low; user interaction is none; scope is changed; confidentiality impact is high; integrity impact is low; availability impact is low.
Classified asCWE-89 (Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection'))

What to Know

An input validation vulnerability exists in an API component of the orchestrator. An authenticated user can exploit this flaw to manipulate backend queries, which may result in unauthorized access to data beyond their intended privileges and cause the underlying system to initiate unintended outbound network connections.

This issue was discovered internally by Arista and the company is not aware of any malicious uses of this issue in customer networks. (NVD)

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-17191
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-17191