https://db.gcve.eu/rss/recent/all/10 Most recent entries from all 2026-10-14T23:01:28.684415+00:00 Vulnerability-Lookup info@gcve.eu python-feedgen Contains only the most 10 recent entries. https://db.gcve.eu/vuln/cve-2021-33503 CVE-2021-33503 2026-10-14T23:01:28.686271+00:00

An issue was discovered in urllib3 before 1.26.5. When provided with a URL containing many @ characters in the authority component, the authority regular expression exhibits catastrophic backtracking, causing a denial of service if a URL were passed as a parameter or redirected to via an HTTP redirect.