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Okta – Username Above 52 Characters Security Advisory


D/LDAP Delegated Authentication - Username Above 52 Characters Security Advisory Description On October 30, 2024, a vulnerability was internally identified in generating the cache key for AD/LDAP DelAuth. The Bcrypt algorithm was used to generate the cache key where we hash a combined string of userId + username + password.

The Bcrypt algorithm was used to generate the cache key where we hash a combined string of userId + username + password. Note: A precondition for this vulnerability is that the username must be or exceed 52 characters any time a cache key is generated for the user. Customers meeting the preconditions should investigate their org system log for this issue between the period of July 23rd, 2024 to October 30th, 2024.

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