{"id":"OSV-2026-816","aliases":[],"status":"published","title":"Heap-buffer-overflow in md_process_all_blocks","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=516422428\n\n```\nCrash type: Heap-buffer-overflow READ {*}\nCrash state:\nmd_process_all_blocks\nmd_parse\nmd_html\n```","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2026-05-27T00:05:00.416781Z","modified":"2026-05-27T14:23:35Z","affected":[{"source":"osv","ecosystem":"OSS-Fuzz","package":"md4c","ranges":[{"type":"GIT","events":[{"introduced":"589681bc2e61bd23eccb2226a1752ad7466f81fd"},{"fixed":"fb4d03dfda4e4e0c24f9a1b43ccd2dacab2bd190"},{"introduced":"1010c1c53d3db2eae60b1db5afd168adb416b0c4"}]}]}],"references":[{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=516422428","tags":["report"]}],"sources":{"osv":[{"id":"OSV-2026-816","title":"Heap-buffer-overflow in md_process_all_blocks","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=516422428\n\n```\nCrash type: Heap-buffer-overflow READ {*}\nCrash state:\nmd_process_all_blocks\nmd_parse\nmd_html\n```\n","status":"published","published":"2026-05-27T00:05:00.416781Z","modified":"2026-05-27T14:23:35.023545Z","updated_at":"2026-11-02T15:52:50.263679Z"}]}}