{"action":"Upgrade jinja2 to 2.11.3-1 or later.","affected":[{"fixed":"2.11.3-1","introduced":"0"}],"component":"jinja2","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["2.11.3-1"],"id":"tcs_01M5NEZS8DV55AQ0K2PC2RH5TR","modified_at":"2026-10-26T12:02:43.317363824Z","published_at":"2021-02-01T20:15:12.517Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2020-28493","https://security-tracker.debian.org/tracker/CVE-2020-28493"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2020-28493","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2020-28493"}],"summary":"This affects the package jinja2 from 0.0.0 and before 2.11.3. The ReDoS vulnerability is mainly due to the `_punctuation_re regex` operator and its use of multiple wildcards. The last wildcard is the"}