{"id":"CVE-2026-115546","title":"Authentication Source Verification Issue in Okta Access Gateway","summary":"Okta Access Gateway (OAG) does not validate the selected authentication source during sign-on. An authenticated user with an active session can modify the authentication source parameter, which may generate a SAML assertion granting acce…","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","cwe":["CWE-639","CWE-287"],"vendor":"Okta","product":"Okta Access Gateway","affected":["access_gateway < 2026.10.2"],"published":"2026-10-23","updated":"2026-10-23","sourceUpdated":"2026-10-23T03:06:37.230Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-115546","references":[{"url":"http://trust.okta.com/security-advisories/authentication-source-verification-issue-in-okta-access-gateway-cve-2026-115546"}],"tags":["cve.org"],"ingestedAt":"2026-10-23T04:15:07.560Z","slug":"CVE-2026-115546","body":"## Overview\n\nOkta Access Gateway (OAG) does not validate the selected authentication source during sign-on. An authenticated user with an active session can modify the authentication source parameter, which may generate a SAML assertion granting access to the Admin Console.\n\n## Affected\n\n- `access_gateway < 2026.10.2`\n\n## Remediation\n\nUpgrade the Okta Access Gateway appliance to version 2026.10.2 or greater.","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}