Vulnerability · Published Oct 23, 2026 · Assigned by Okta
CVE-2026-115546Authentication Source Verification Issue in Okta Access Gateway
High 8.1
In plain English
A high-severity authorization bypass via user-controlled key in Okta Access Gateway from Okta. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.4%top 63.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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 access to the Admin Console.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Okta | Okta Access Gateway | 0 – before 2026.10.2 |
Weakness: CWE-639, CWE-287 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H