Executive brief
dataCycle-CORE, a data management system used for centralizing and distributing corporate information, lacks protection against automated password guessing. An attacker can repeatedly attempt to guess user passwords without being locked out or slowed down, potentially gaining unauthorized access to the system. This could lead to the exposure of sensitive business data or unauthorized modification of records.
Technical details
The dataCycle-CORE application fails to implement improper restriction of excessive authentication attempts (CWE-307). While the Ruby on Rails application utilizes the Devise authentication framework, the ':lockable' module is configured with both lock and unlock strategies explicitly disabled. Furthermore, no middleware or application-level request throttling is present. This vulnerability affects both the standard HTML login flow (/users/sign_in) and the JSON API endpoint (/api/v4/auth/login). The API endpoint is particularly vulnerable to automated exploitation as it does not require CSRF tokens. Successful exploitation allows an attacker to obtain valid session cookies or JSON Web Tokens (JWTs). The issue is addressed in version 26.06.08.
Affected products
- datacycle-engine dataCycle-CORE <= 25.07.3
Timeline
- 2026-06-24: advisory: GitHub Security Advisory published
- 2026-07-20: disclosed: CVE published to NVD
- 2026-06-24: patched: Fix released in version 26.06.08