Description

The Okta Access Gateway does not sanitize SAML assertion attribute values before interpolating them into LDAP search filters in the LDAP datastore configuration. The raw values are substituted directly into the filter string and passed to the LDAP search operation, resulting in modification of the intended query logic.

Affected product and versions

Customers using Okta Access Gateway appliance versions prior to 2026.9.1 are affected.

Preconditions

This applies if the following preconditions are present:

• The administrator has configured an LDAP datastore with a search filter template that references one or more SAML assertion attributes using the interpolation syntax,

• The SAML attribute referenced in the filter template contains an externally influenced value.

Customer Recommendations

To remediate this vulnerability, upgrade the Okta Access Gateway appliance to version 2026.9.1 or greater.

Resolution

The vulnerability is present in Okta Access Gateway appliance versions prior to 2026.9.1 and is resolved in version 2026.9.1.

CVE details

References

Download the Okta Access Gateway image