Improper Authorization in Elastic Cloud Enterprise can lead to Privilege Escalation where the built-in readonly user can call APIs that should not be allowed. The list of APIs that are affected by this issue is:

post:/platform/configuration/security/service-accounts
delete:/platform/configuration/security/service-accounts/{user_id}
patch:/platform/configuration/security/service-accounts/{user_id}
post:/platform/configuration/security/service-accounts/{user_id}/keys
delete:/platform/configuration/security/service-accounts/{user_id}/keys/{api_key_id}
patch:/user
post:/users
post:/users/auth/keys
delete:/users/auth/keys
delete:/users/auth/keys/_all
delete:/users/auth/keys/{api_key_id}
delete:/users/{user_id}/auth/keys
delete:/users/{user_id}/auth/keys/{api_key_id}
delete:/users/{user_name}
patch:/users/{user_name}

References

• https://nvd.nist.gov/vuln/detail/CVE-2025-37736
• https://discuss.elastic.co/t/elastic-cloud-enterprise-ece-3-8-3-and-4-0-3-security-update-esa-2025-22/383132