https://vulnerability.cert.dk/rss/recent/all/10 Most recent entries from all 2025-08-23T13:48:24.640431+00:00 Vulnerability-Lookup cert@cert.dk python-feedgen Contains only the most 10 recent entries. https://vulnerability.cert.dk/vuln/cve-2021-21840 cve-2021-21840 2025-08-23T13:48:24.647648+00:00