Critical severity · published Sep 8, 2026
CVE-2026-78623
Improper Handling of SAML Assertion Attributes in Okta Access Gateway Advanced Mode Datastores
9.9
CVSS
0.4%
EPSS
No
On KEV
Description
The Okta Access Gateway does not sanitize SAML assertion values before interpolating them into database queries in the advanced mode datastore configuration. The unsanitized values are substituted directly into the query string prior to preparation, resulting in unintended SQL execution against the configured backend database.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 39% 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 2026.9.1 · source: vendor
AG
Access Gateway · Okta
before 2026.9.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-78623
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-78623
Vendor Advisory
https://trust.okta.com/security-advisories/improper-handling-of-saml-assertion-attributes-in-okta-access-gateway-advanced-mode-datastores-cve-2026-78623
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