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High severity · published Oct 23, 2026
CVE-2026-115546
Authentication Source Verification Issue in Okta Access Gateway
New
8.1
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 36% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OA
Okta Access Gateway · Okta
before 2026.10.2 · source: vendor
Affected product
OA
Okta Access Gateway
Okta
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-115546
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-115546
trust.okta.com
http://trust.okta.com/security-advisories/authentication-source-verification-issue-in-okta-access-gateway-cve-2026-115546
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