CVE-2026-101151

Security Advisory 0187

Published Oct 6, 2026 CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

CVE-2026-101151 has been fixed in the following releases: - 2026.2.1 and later releases in the 2026.2.x train - 2026.1.3 and later releases in the 2026.1.x train - 2025.3.4 and later releases in the 2025.3.x train


Vendor Workaround

No mitigation exists for this issue.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Arista
Arista cloudvision Portal
Vendors & Products Arista
Arista cloudvision Portal
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Security Advisory 0187
Weaknesses CWE-601
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N'}

cvssV4_0

{'score': 5.3, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Arista
Published
Updated
Oct 6, 2026, 7:50 PM
Reserved
Sep 28, 2026, 8:30 AM
Status
Awaiting Analysis
Published
Oct 6, 2026, 8:17 PM
Modified
Oct 7, 2026, 1:38 PM