CVE-2026-23963 | Mastodon up to 4.3.17/4.4.11/4.5.4 API allocation of resources (GHSA-6x3w-9g92-gvf3)
A vulnerability was found in Mastodon up to 4.3.17/4.4.11/4.5.4. It has been rated as problematic. The affected element is an unknown function of the component API Handler. The manipulation leads to allocation of resources.
This vulnerability is listed as CVE-2026-23963. The attack may be initiated remotely. There is no available exploit.
Upgrading the affected component is advised.