{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-101152","assignerOrgId":"c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7","state":"PUBLISHED","assignerShortName":"Arista","dateReserved":"2026-09-28T08:30:31.034Z","datePublished":"2026-10-06T19:37:53.573Z","dateUpdated":"2026-10-06T19:49:57.474Z"},"containers":{"cna":{"providerMetadata":{"orgId":"c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7","shortName":"Arista","dateUpdated":"2026-10-06T19:37:53.573Z"},"title":"Security Advisory 0187","descriptions":[{"lang":"en","value":"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.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>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.</p>"}]}],"affected":[{"vendor":"Arista Networks","product":"CloudVision Portal","platforms":["CloudVision Portal, virtual appliance or physical appliance"],"defaultStatus":"unaffected","versions":[{"version":"2026.2.0","status":"affected","versionType":"custom"},{"version":"2026.1.0","lessThanOrEqual":"2026.1.2","status":"affected","versionType":"custom"},{"version":"2025.3.0","lessThanOrEqual":"2025.3.3","status":"affected","versionType":"custom"},{"version":"2021.1.0","lessThan":"2025.3.0","status":"affected","versionType":"custom"}]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N","baseScore":8,"baseSeverity":"HIGH"}},{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","baseScore":7.6,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-601","lang":"en","description":"CWE-601 URL Redirection to Untrusted Site ('Open Redirect')"}]}],"impacts":[{"capecId":"CAPEC-194","descriptions":[{"lang":"en","value":"CAPEC-194 Fake the Source of Data"}]}],"configurations":[{"lang":"en","value":"In order to be vulnerable to CVE-2026-101152, SSO must be configured with an external identity provider. Deployments using only non-SSO authentication are not affected. To check if SSO is configured, navigate to Settings → Authentication in the CloudVision UI. If an OIDC or SAML provider is configured, the deployment is potentially affected.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>In order to be vulnerable to CVE-2026-101152, SSO must be configured with an external identity provider. Deployments using only non-SSO authentication are not affected. To check if SSO is configured, navigate to <strong>Settings → Authentication</strong> in the CloudVision UI. If an OIDC or SAML provider is configured, the deployment is potentially affected.</p>"}]}],"workarounds":[{"lang":"en","value":"No mitigation exists for this issue.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>No mitigation exists for this issue.</p>"}]}],"solutions":[{"lang":"en","value":"CVE-2026-101152 has been fixed in the following releases:\n- 2026.2.1 and later releases in the 2026.2.x train\n- 2026.1.3 and later releases in the 2026.1.x train\n- 2025.3.4 and later releases in the 2025.3.x train","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>CVE-2026-101152 has been fixed in the following releases:</p><ul><li>2026.2.1 and later releases in the 2026.2.x train</li><li>2026.1.3 and later releases in the 2026.1.x train</li><li>2025.3.4 and later releases in the 2025.3.x train</li></ul>"}]}],"references":[{"url":"https://www.arista.com/en/support/advisories-notices/security-advisory/24803-security-advisory-0187","tags":["vendor-advisory"]}],"source":{"advisory":"Security Advisory 0187","discovery":"INTERNAL","defects":["BUG 1864515"]}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-06T19:49:47.242959Z","id":"CVE-2026-101152","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-06T19:49:57.474Z"}}]}}