https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-09-30T15:44:03.668830+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2021-29921 CVE-2021-29921 2026-09-30T15:44:03.672947+00:00

In Python before 3,9,5, the ipaddress library mishandles leading zero characters in the octets of an IP address string. This (in some situations) allows attackers to bypass access control that is based on IP addresses.

 https://vulnerability.circl.lu/vuln/usn-4973-1 USN-4973-1 — python3.8 vulnerability 2026-09-30T15:44:03.673048+00:00

Affected: Ubuntu:20.04:LTS: python3.8

It was discovered that the Python stdlib ipaddress API incorrectly handled octal strings. A remote attacker could possibly use this issue to perform a wide variety of attacks, including bypassing certain access restrictions.