CVE-2026-101151

Security Advisory 0187

State: Published
Severity: 5.3 Medium
Published: Oct 6, 2026
Updated: Oct 6, 2026
Reserved: Sep 28, 2026

Description

Insufficient validation of request in login flow could allow a remote, unauthenticated attacker to craft a URL that, when clicked by a user, redirects the user's browser to an arbitrary external site upon completion of the authentication process.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N	Arista
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N	Arista

Weaknesses

CWE-601 URL Redirection to Untrusted Site ('Open Redirect')

Affected Products

Product	Versions
CloudVision PortalArista Networks	2026.2.0Affected 2026.1.0 through 2026.1.2Affected 2025.3.0 through 2025.3.3Affected 2020.3.0 to before 2025.3.0Affected

References

https://www.arista.com/en/support/advisories-notices/security-advisory/24803-security-advisory-0187vendor-advisory

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