{"action":"Upgrade re2c to 4.5.1-1 or later.","affected":[{"fixed":"4.5.1-1","introduced":"0"}],"component":"re2c","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["4.5.1-1"],"id":"tcs_01M5NRHH6MSENFXRZCDMR8WXNY","modified_at":"2026-10-01T03:03:03.042982667Z","published_at":"2026-02-22T01:16:00.563Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-2903","https://security-tracker.debian.org/tracker/CVE-2026-2903"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-2903#Debian:14/re2c","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-2903"}],"summary":"A flaw has been found in skvadrik re2c up to 4.4. Impacted is the function check_and_merge_special_rules of the file src/parse/ast.cc. This manipulation causes null pointer dereference. The attack can"}