High severity · published Oct 6, 2026
CVE-2026-101152
Insufficient validation in the Single Sign-On (SSO) login flow could allow a remote, unauthenticated attacker to craft a URL that, when clicked by a user, causes the identity provider (IdP) to deliver
8.0
CVSS
0.4%
EPSS
No
On KEV
Description
Insufficient validation in the Single Sign-On (SSO) login flow could allow a remote, unauthenticated attacker to craft a URL that, when clicked by a user, causes the identity provider (IdP) to deliver authentication material to an attacker-controlled URL instead of to CloudVision.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CP
CloudVision Portal · Arista Networks
2026.2.0; 2026.1.0 through 2026.1.2; 2025.3.0 through 2025.3.3; 2021.1.0 before 2025.3.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-101152
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-101152
vendor-advisory
https://www.arista.com/en/support/advisories-notices/security-advisory/24803-security-advisory-0187
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