CVE-2026-17191 — CRITICAL (9.1)

Vulnerability 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 Score

9.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality

HIGH

Integrity

LOW

Availability

LOW

Related Weaknesses (CWE)

CWE-89

References

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

FAQ

What is CVE-2026-17191?

CVE-2026-17191 is a vulnerability with a CVSS score of 9.1 (CRITICAL). 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 ...

How severe is CVE-2026-17191?

CVE-2026-17191 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-17191?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.