FreshRSS is a self-hosted RSS feed aggregator. A vulnerability in versions prior to 1.26.2 causes a user to be repeatedly logged out after fetching a malicious feed entry, effectively causing that user to suffer denial of service. Version 1.26.2 contains a patch for the issue.
https://github.com/FreshRSS/FreshRSS/security/advisories/GHSA-vpmc-3fv2-jmgp