{"action":"Upgrade pypy3 to 7.3.5+dfsg-2 or later.","affected":[{"fixed":"7.3.5+dfsg-2","introduced":"0"}],"component":"pypy3","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["7.3.5+dfsg-2"],"id":"tcs_01M5NFV5262RTDQ9AM63547WWB","modified_at":"2026-10-15T09:47:42.510271475Z","published_at":"2022-03-10T17:42:59.623Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-3733","https://security-tracker.debian.org/tracker/CVE-2021-3733"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-3733#Debian:14/pypy3","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-3733"}],"summary":"There's a flaw in urllib's AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP server that an HTTP client (such as web browser) connects to, could trigger a Regular Expression De"}