{"action":"Upgrade md4c to 0.4.5-2 or later.","affected":[{"fixed":"0.4.5-2","introduced":"0"}],"component":"md4c","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["0.4.5-2"],"id":"tcs_01M5NEWZRAFP2EM8PCEFS516V3","modified_at":"2026-09-11T11:02:30.762561872Z","published_at":"2020-09-30T18:15:26.960Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2020-26148","https://security-tracker.debian.org/tracker/CVE-2020-26148"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2020-26148","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2020-26148"}],"summary":"md_push_block_bytes in md4c.c in md4c 0.4.5 allows attackers to trigger use of uninitialized memory, and cause a denial of service (e.g., assertion failure) via a malformed Markdown document."}