VulnerabilityAwaiting Analysis

CVE-2026-17191

An input validation vulnerability exists in an API component of the orchestrator.

HIGH 8.5EPSS 2.83%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.83%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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.

CVSS 4.0: 8.5 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:H/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS: 2.83% probability · 86th percentile
CISA KEV: Not listed
Weakness: CWE-89
Source: psirt@arista.com

References

https://www.arista.com/en/support/advisories-notices/security-advisory/24365-security-advisory-0145

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.