Ghostlander

**Name of the Vulnerable Software and Affected Versions** ghostlander Halcyon versions prior to 1.1.1.0-hal **Description** A critical vulnerability has been found in ghostlander Halcyon, affecting the function `CBlock::AddToBlockIndex` of the file src/main.cpp in the component Block Verification. This vulnerability leads to improper access controls and can be exploited remotely. **Recommendations** For versions prior to 1.1.1.0-hal, upgrade to version 1.1.1.0-hal to address this issue. As a temporary workaround, consider restricting access to the `CBlock::AddToBlockIndex` function until the upgrade is applied.