CVE-2026-8135 | Concrete CMS up to 9.5.0 REST API json_decode deserialization (EUVD-2026-31336)
A vulnerability marked as problematic has been reported in Concrete CMS up to 9.5.0. The impacted element is the function json_decode of the component REST API. The manipulation leads to deserialization.
This vulnerability is referenced as CVE-2026-8135. Remote exploitation of the attack is possible. No exploit is available.