Rongronggg9

**Name of the Vulnerable Software and Affected Versions** RSSHub versions prior to 5c4177441417 **Description** The issue arises when special values are passed to the `filter` and `filterout` parameters, causing abnormally high CPU usage. This impacts the performance of servers and RSSHub services, potentially leading to a denial of service. **Recommendations** For versions prior to 5c4177441417, update to version 5c4177441417 or a later version as soon as possible to resolve the issue. As a temporary workaround, consider restricting the use of the `filter` and `filterout` parameters to minimize the risk of exploitation.